OTTER TAIL CORPORATION has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan OTTER TAIL CORPORATION PENSION PLAN
| Measure | Date | Value |
|---|
| 2023: OTTER TAIL CORPORATION PENSION PLAN 2023 401k membership |
|---|
| Total participants, beginning-of-year | 2023-01-01 | 1,284 |
| Total number of active participants reported on line 7a of the Form 5500 | 2023-01-01 | 311 |
| Number of retired or separated participants receiving benefits | 2023-01-01 | 682 |
| Number of other retired or separated participants entitled to future benefits | 2023-01-01 | 114 |
| Total of all active and inactive participants | 2023-01-01 | 1,107 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2023-01-01 | 159 |
| Total participants | 2023-01-01 | 1,266 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2023-01-01 | 0 |
| 2022: OTTER TAIL CORPORATION PENSION PLAN 2022 401k membership |
|---|
| Market value of plan assets | 2022-12-31 | 407,077,709 |
| Acturial value of plan assets | 2022-12-31 | 394,400,767 |
| Funding target for retired participants and beneficiaries receiving payment | 2022-12-31 | 177,100,099 |
| Number of terminated vested participants | 2022-12-31 | 121 |
| Fundng target for terminated vested participants | 2022-12-31 | 12,515,040 |
| Active participant vested funding target | 2022-12-31 | 84,618,179 |
| Number of active participants | 2022-12-31 | 365 |
| Total funding liabilities for active participants | 2022-12-31 | 89,171,988 |
| Total participant count | 2022-12-31 | 1,302 |
| Total funding target for all participants | 2022-12-31 | 278,787,127 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2022-12-31 | 87,265,438 |
| Prefunding balanced used to offset prior years funding requirement | 2022-12-31 | 5,978,693 |
| Amount remaining of prefunding balance | 2022-12-31 | 81,286,745 |
| Present value of excess contributions | 2022-12-31 | 18,643,938 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2022-12-31 | 19,903,373 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2022-12-31 | 19,903,373 |
| Balance of carryovers at beginning of current year | 2022-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2022-12-31 | 108,635,984 |
| Total employee contributions | 2022-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2022-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2022-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2022-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2022-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2022-12-31 | 5,362,751 |
| Net shortfall amortization installment of oustanding balance | 2022-12-31 | 0 |
| Carryover balance elected to use to offset funding requirement | 2022-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2022-12-31 | 0 |
| Unpaid minimum required contributions for current year | 2022-12-31 | 0 |
| Total participants, beginning-of-year | 2022-01-01 | 1,302 |
| Total number of active participants reported on line 7a of the Form 5500 | 2022-01-01 | 343 |
| Number of retired or separated participants receiving benefits | 2022-01-01 | 671 |
| Number of other retired or separated participants entitled to future benefits | 2022-01-01 | 115 |
| Total of all active and inactive participants | 2022-01-01 | 1,129 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2022-01-01 | 155 |
| Total participants | 2022-01-01 | 1,284 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2022-01-01 | 0 |
| 2021: OTTER TAIL CORPORATION PENSION PLAN 2021 401k membership |
|---|
| Market value of plan assets | 2021-12-31 | 370,637,444 |
| Acturial value of plan assets | 2021-12-31 | 347,935,618 |
| Funding target for retired participants and beneficiaries receiving payment | 2021-12-31 | 164,325,623 |
| Number of terminated vested participants | 2021-12-31 | 124 |
| Fundng target for terminated vested participants | 2021-12-31 | 11,859,355 |
| Active participant vested funding target | 2021-12-31 | 87,342,443 |
| Number of active participants | 2021-12-31 | 407 |
| Total funding liabilities for active participants | 2021-12-31 | 92,678,670 |
| Total participant count | 2021-12-31 | 1,319 |
| Total funding target for all participants | 2021-12-31 | 268,863,648 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2021-12-31 | 79,760,644 |
| Prefunding balanced used to offset prior years funding requirement | 2021-12-31 | 10,208,645 |
| Amount remaining of prefunding balance | 2021-12-31 | 69,551,999 |
| Present value of excess contributions | 2021-12-31 | 9,228,752 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2021-12-31 | 10,222,689 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2021-12-31 | 10,222,689 |
| Balance of carryovers at beginning of current year | 2021-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2021-12-31 | 87,265,438 |
| Total employer contributions | 2021-12-31 | 20,000,000 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2021-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2021-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2021-12-31 | 18,808,589 |
| Liquidity shortfalls end of Q1 | 2021-12-31 | 0 |
| Liquidity shortfalls end of Q2 | 2021-12-31 | 0 |
| Liquidity shortfalls end of Q3 | 2021-12-31 | 0 |
| Liquidity shortfalls end of Q4 | 2021-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2021-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2021-12-31 | 5,379,372 |
| Net shortfall amortization installment of oustanding balance | 2021-12-31 | 8,193,468 |
| Waiver amortization installment | 2021-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2021-12-31 | 6,143,344 |
| Carryover balance elected to use to offset funding requirement | 2021-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2021-12-31 | 5,978,693 |
| Additional cash requirement | 2021-12-31 | 164,651 |
| Contributions allocatedtoward minimum required contributions for current year | 2021-12-31 | 18,808,589 |
| Unpaid minimum required contributions for current year | 2021-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2021-12-31 | 0 |
| Total participants, beginning-of-year | 2021-01-01 | 1,319 |
| Total number of active participants reported on line 7a of the Form 5500 | 2021-01-01 | 365 |
| Number of retired or separated participants receiving benefits | 2021-01-01 | 674 |
| Number of other retired or separated participants entitled to future benefits | 2021-01-01 | 119 |
| Total of all active and inactive participants | 2021-01-01 | 1,158 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2021-01-01 | 144 |
| Total participants | 2021-01-01 | 1,302 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2021-01-01 | 0 |
| 2020: OTTER TAIL CORPORATION PENSION PLAN 2020 401k membership |
|---|
| Market value of plan assets | 2020-12-31 | 340,934,831 |
| Acturial value of plan assets | 2020-12-31 | 330,132,388 |
| Funding target for retired participants and beneficiaries receiving payment | 2020-12-31 | 162,054,652 |
| Number of terminated vested participants | 2020-12-31 | 123 |
| Fundng target for terminated vested participants | 2020-12-31 | 10,831,021 |
| Active participant vested funding target | 2020-12-31 | 91,249,357 |
| Number of active participants | 2020-12-31 | 439 |
| Total funding liabilities for active participants | 2020-12-31 | 96,853,426 |
| Total participant count | 2020-12-31 | 1,336 |
| Total funding target for all participants | 2020-12-31 | 269,739,099 |
| Balance at beginning of prior year after applicable adjustments | 2020-12-31 | 0 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2020-12-31 | 66,323,847 |
| Carryover balanced portion elected for use to offset prior years funding requirement | 2020-12-31 | 0 |
| Prefunding balanced used to offset prior years funding requirement | 2020-12-31 | 9,924,754 |
| Amount remaining of carryover balance | 2020-12-31 | 0 |
| Amount remaining of prefunding balance | 2020-12-31 | 56,399,093 |
| Present value of excess contributions | 2020-12-31 | 10,565,172 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2020-12-31 | 12,510,366 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2020-12-31 | 11,153,652 |
| Reductions in caryover balances due to elections or deemed elections | 2020-12-31 | 0 |
| Reductions in prefunding balances due to elections or deemed elections | 2020-12-31 | 0 |
| Balance of carryovers at beginning of current year | 2020-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2020-12-31 | 78,403,930 |
| Total employer contributions | 2020-12-31 | 10,000,000 |
| Total employee contributions | 2020-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2020-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2020-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2020-12-31 | 9,448,500 |
| Liquidity shortfalls end of Q1 | 2020-12-31 | 0 |
| Liquidity shortfalls end of Q2 | 2020-12-31 | 0 |
| Liquidity shortfalls end of Q3 | 2020-12-31 | 0 |
| Liquidity shortfalls end of Q4 | 2020-12-31 | 0 |
| Unpaid minimum required contributions for all prior years | 2020-12-31 | 0 |
| iDiscounted employer contributions allocated toward unpaid minimum required contributions from prior years | 2020-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2020-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2020-12-31 | 5,970,559 |
| Net shortfall amortization installment of oustanding balance | 2020-12-31 | 18,010,641 |
| Waiver amortization installment | 2020-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2020-12-31 | 10,208,645 |
| Carryover balance elected to use to offset funding requirement | 2020-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2020-12-31 | 10,208,645 |
| Additional cash requirement | 2020-12-31 | 0 |
| Contributions allocatedtoward minimum required contributions for current year | 2020-12-31 | 9,448,500 |
| Unpaid minimum required contributions for current year | 2020-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2020-12-31 | 0 |
| Total participants, beginning-of-year | 2020-01-01 | 1,336 |
| Total number of active participants reported on line 7a of the Form 5500 | 2020-01-01 | 407 |
| Number of retired or separated participants receiving benefits | 2020-01-01 | 652 |
| Number of other retired or separated participants entitled to future benefits | 2020-01-01 | 123 |
| Total of all active and inactive participants | 2020-01-01 | 1,182 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2020-01-01 | 137 |
| Total participants | 2020-01-01 | 1,319 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2020-01-01 | 0 |
| 2019: OTTER TAIL CORPORATION PENSION PLAN 2019 401k membership |
|---|
| Market value of plan assets | 2019-12-31 | 291,764,189 |
| Acturial value of plan assets | 2019-12-31 | 308,568,274 |
| Funding target for retired participants and beneficiaries receiving payment | 2019-12-31 | 152,022,929 |
| Number of terminated vested participants | 2019-12-31 | 120 |
| Fundng target for terminated vested participants | 2019-12-31 | 10,396,539 |
| Active participant vested funding target | 2019-12-31 | 92,810,144 |
| Number of active participants | 2019-12-31 | 478 |
| Total funding liabilities for active participants | 2019-12-31 | 98,415,939 |
| Total participant count | 2019-12-31 | 1,389 |
| Total funding target for all participants | 2019-12-31 | 260,835,407 |
| Balance at beginning of prior year after applicable adjustments | 2019-12-31 | 0 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2019-12-31 | 58,205,850 |
| Carryover balanced portion elected for use to offset prior years funding requirement | 2019-12-31 | 0 |
| Prefunding balanced used to offset prior years funding requirement | 2019-12-31 | 9,198,148 |
| Amount remaining of carryover balance | 2019-12-31 | 0 |
| Amount remaining of prefunding balance | 2019-12-31 | 49,007,702 |
| Present value of excess contributions | 2019-12-31 | 20,790,348 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2019-12-31 | 20,800,593 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2019-12-31 | 20,800,593 |
| Reductions in caryover balances due to elections or deemed elections | 2019-12-31 | 0 |
| Reductions in prefunding balances due to elections or deemed elections | 2019-12-31 | 0 |
| Balance of carryovers at beginning of current year | 2019-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2019-12-31 | 66,323,847 |
| Total employer contributions | 2019-12-31 | 11,200,000 |
| Total employee contributions | 2019-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2019-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2019-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2019-12-31 | 10,565,172 |
| Liquidity shortfalls end of Q1 | 2019-12-31 | 0 |
| Liquidity shortfalls end of Q2 | 2019-12-31 | 0 |
| Liquidity shortfalls end of Q3 | 2019-12-31 | 0 |
| Liquidity shortfalls end of Q4 | 2019-12-31 | 0 |
| Unpaid minimum required contributions for all prior years | 2019-12-31 | 0 |
| iDiscounted employer contributions allocated toward unpaid minimum required contributions from prior years | 2019-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2019-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2019-12-31 | 6,103,536 |
| Net shortfall amortization installment of oustanding balance | 2019-12-31 | 18,590,980 |
| Waiver amortization installment | 2019-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2019-12-31 | 9,924,754 |
| Carryover balance elected to use to offset funding requirement | 2019-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2019-12-31 | 9,924,754 |
| Additional cash requirement | 2019-12-31 | 0 |
| Contributions allocatedtoward minimum required contributions for current year | 2019-12-31 | 10,565,172 |
| Unpaid minimum required contributions for current year | 2019-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2019-12-31 | 0 |
| Total participants, beginning-of-year | 2019-01-01 | 1,389 |
| Total number of active participants reported on line 7a of the Form 5500 | 2019-01-01 | 439 |
| Number of retired or separated participants receiving benefits | 2019-01-01 | 636 |
| Number of other retired or separated participants entitled to future benefits | 2019-01-01 | 121 |
| Total of all active and inactive participants | 2019-01-01 | 1,196 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2019-01-01 | 140 |
| Total participants | 2019-01-01 | 1,336 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2019-01-01 | 6 |
| 2018: OTTER TAIL CORPORATION PENSION PLAN 2018 401k membership |
|---|
| Market value of plan assets | 2018-12-31 | 305,233,663 |
| Acturial value of plan assets | 2018-12-31 | 282,908,964 |
| Funding target for retired participants and beneficiaries receiving payment | 2018-12-31 | 135,518,023 |
| Number of terminated vested participants | 2018-12-31 | 120 |
| Fundng target for terminated vested participants | 2018-12-31 | 9,962,142 |
| Active participant vested funding target | 2018-12-31 | 91,231,720 |
| Number of active participants | 2018-12-31 | 519 |
| Total funding liabilities for active participants | 2018-12-31 | 96,718,927 |
| Total participant count | 2018-12-31 | 1,408 |
| Total funding target for all participants | 2018-12-31 | 242,199,092 |
| Balance at beginning of prior year after applicable adjustments | 2018-12-31 | 0 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2018-12-31 | 40,809,414 |
| Carryover balanced portion elected for use to offset prior years funding requirement | 2018-12-31 | 0 |
| Prefunding balanced used to offset prior years funding requirement | 2018-12-31 | 5,496,933 |
| Amount remaining of carryover balance | 2018-12-31 | 0 |
| Amount remaining of prefunding balance | 2018-12-31 | 35,312,481 |
| Present value of excess contributions | 2018-12-31 | 14,893,457 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2018-12-31 | 16,452,372 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2018-12-31 | 16,452,372 |
| Reductions in caryover balances due to elections or deemed elections | 2018-12-31 | 0 |
| Reductions in prefunding balances due to elections or deemed elections | 2018-12-31 | 0 |
| Balance of carryovers at beginning of current year | 2018-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2018-12-31 | 58,205,850 |
| Total employer contributions | 2018-12-31 | 22,500,000 |
| Total employee contributions | 2018-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2018-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2018-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2018-12-31 | 20,790,348 |
| Liquidity shortfalls end of Q1 | 2018-12-31 | 0 |
| Liquidity shortfalls end of Q2 | 2018-12-31 | 0 |
| Liquidity shortfalls end of Q3 | 2018-12-31 | 0 |
| Liquidity shortfalls end of Q4 | 2018-12-31 | 0 |
| Unpaid minimum required contributions for all prior years | 2018-12-31 | 0 |
| iDiscounted employer contributions allocated toward unpaid minimum required contributions from prior years | 2018-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2018-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2018-12-31 | 5,955,331 |
| Net shortfall amortization installment of oustanding balance | 2018-12-31 | 17,495,978 |
| Waiver amortization installment | 2018-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2018-12-31 | 9,198,148 |
| Carryover balance elected to use to offset funding requirement | 2018-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2018-12-31 | 9,198,148 |
| Additional cash requirement | 2018-12-31 | 0 |
| Contributions allocatedtoward minimum required contributions for current year | 2018-12-31 | 20,790,348 |
| Unpaid minimum required contributions for current year | 2018-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2018-12-31 | 0 |
| Total participants, beginning-of-year | 2018-01-01 | 1,408 |
| Total number of active participants reported on line 7a of the Form 5500 | 2018-01-01 | 478 |
| Number of retired or separated participants receiving benefits | 2018-01-01 | 622 |
| Number of other retired or separated participants entitled to future benefits | 2018-01-01 | 120 |
| Total of all active and inactive participants | 2018-01-01 | 1,220 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2018-01-01 | 169 |
| Total participants | 2018-01-01 | 1,389 |
| 2017: OTTER TAIL CORPORATION PENSION PLAN 2017 401k membership |
|---|
| Market value of plan assets | 2017-12-31 | 254,345,642 |
| Acturial value of plan assets | 2017-12-31 | 257,041,265 |
| Funding target for retired participants and beneficiaries receiving payment | 2017-12-31 | 127,632,090 |
| Number of terminated vested participants | 2017-12-31 | 124 |
| Fundng target for terminated vested participants | 2017-12-31 | 9,559,755 |
| Active participant vested funding target | 2017-12-31 | 88,430,550 |
| Number of active participants | 2017-12-31 | 542 |
| Total funding liabilities for active participants | 2017-12-31 | 93,988,286 |
| Total participant count | 2017-12-31 | 1,421 |
| Total funding target for all participants | 2017-12-31 | 231,180,131 |
| Balance at beginning of prior year after applicable adjustments | 2017-12-31 | 0 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2017-12-31 | 44,294,294 |
| Carryover balanced portion elected for use to offset prior years funding requirement | 2017-12-31 | 0 |
| Prefunding balanced used to offset prior years funding requirement | 2017-12-31 | 7,329,245 |
| Amount remaining of carryover balance | 2017-12-31 | 0 |
| Amount remaining of prefunding balance | 2017-12-31 | 36,965,049 |
| Present value of excess contributions | 2017-12-31 | 0 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2017-12-31 | 0 |
| Reductions in caryover balances due to elections or deemed elections | 2017-12-31 | 0 |
| Reductions in prefunding balances due to elections or deemed elections | 2017-12-31 | 0 |
| Balance of carryovers at beginning of current year | 2017-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2017-12-31 | 40,809,414 |
| Total employer contributions | 2017-12-31 | 20,000,000 |
| Total employee contributions | 2017-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2017-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2017-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2017-12-31 | 18,802,073 |
| Liquidity shortfalls end of Q1 | 2017-12-31 | 0 |
| Liquidity shortfalls end of Q2 | 2017-12-31 | 0 |
| Liquidity shortfalls end of Q3 | 2017-12-31 | 0 |
| Liquidity shortfalls end of Q4 | 2017-12-31 | 0 |
| Unpaid minimum required contributions for all prior years | 2017-12-31 | 0 |
| iDiscounted employer contributions allocated toward unpaid minimum required contributions from prior years | 2017-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2017-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2017-12-31 | 6,869,200 |
| Net shortfall amortization installment of oustanding balance | 2017-12-31 | 14,948,280 |
| Waiver amortization installment | 2017-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2017-12-31 | 9,405,549 |
| Carryover balance elected to use to offset funding requirement | 2017-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2017-12-31 | 5,496,933 |
| Additional cash requirement | 2017-12-31 | 3,908,616 |
| Contributions allocatedtoward minimum required contributions for current year | 2017-12-31 | 18,802,073 |
| Unpaid minimum required contributions for current year | 2017-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2017-12-31 | 0 |
| Total participants, beginning-of-year | 2017-01-01 | 1,421 |
| Total number of active participants reported on line 7a of the Form 5500 | 2017-01-01 | 519 |
| Number of retired or separated participants receiving benefits | 2017-01-01 | 601 |
| Number of other retired or separated participants entitled to future benefits | 2017-01-01 | 119 |
| Total of all active and inactive participants | 2017-01-01 | 1,239 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2017-01-01 | 169 |
| Total participants | 2017-01-01 | 1,408 |
| 2016: OTTER TAIL CORPORATION PENSION PLAN 2016 401k membership |
|---|
| Market value of plan assets | 2016-12-31 | 243,595,723 |
| Acturial value of plan assets | 2016-12-31 | 258,720,546 |
| Funding target for retired participants and beneficiaries receiving payment | 2016-12-31 | 116,783,446 |
| Number of terminated vested participants | 2016-12-31 | 129 |
| Fundng target for terminated vested participants | 2016-12-31 | 10,594,555 |
| Active participant vested funding target | 2016-12-31 | 85,855,879 |
| Number of active participants | 2016-12-31 | 581 |
| Total funding liabilities for active participants | 2016-12-31 | 91,250,786 |
| Total participant count | 2016-12-31 | 1,437 |
| Total funding target for all participants | 2016-12-31 | 218,628,787 |
| Balance at beginning of prior year after applicable adjustments | 2016-12-31 | 0 |
| Prefunding balance at beginning of prior year after applicable adjustments | 2016-12-31 | 37,232,503 |
| Carryover balanced portion elected for use to offset prior years funding requirement | 2016-12-31 | 0 |
| Prefunding balanced used to offset prior years funding requirement | 2016-12-31 | 0 |
| Amount remaining of carryover balance | 2016-12-31 | 0 |
| Amount remaining of prefunding balance | 2016-12-31 | 37,232,503 |
| Present value of excess contributions | 2016-12-31 | 7,900,694 |
| Total available prior years excess cotributions available at beginning of current plan year to add to prefunding balance | 2016-12-31 | 8,398,438 |
| Total available prior years excess cotributions added at beginning of current plan year to add to prefunding balance | 2016-12-31 | 8,398,438 |
| Reductions in caryover balances due to elections or deemed elections | 2016-12-31 | 0 |
| Reductions in prefunding balances due to elections or deemed elections | 2016-12-31 | 0 |
| Balance of carryovers at beginning of current year | 2016-12-31 | 0 |
| Balance of prefunding at beginning of current year | 2016-12-31 | 44,294,294 |
| Total employer contributions | 2016-12-31 | 0 |
| Contributions allocated toward unpaid minimum require contributions from prior years | 2016-12-31 | 0 |
| Contributions made to avoid restrictions adjusted to valuation date | 2016-12-31 | 0 |
| Contributions allocated toward minimum required contributions for current year adjusted to valuation date | 2016-12-31 | 0 |
| Unpaid minimum required contributions for all prior years | 2016-12-31 | 0 |
| iDiscounted employer contributions allocated toward unpaid minimum required contributions from prior years | 2016-12-31 | 0 |
| Remaining amount of unpaid minimum required contributions | 2016-12-31 | 0 |
| Minimum required contributions for current year target normal cost | 2016-12-31 | 6,634,888 |
| Net shortfall amortization installment of oustanding balance | 2016-12-31 | 4,202,535 |
| Waiver amortization installment | 2016-12-31 | 0 |
| Total funding amount beforereflecting carryover/prefunding balances | 2016-12-31 | 7,329,245 |
| Carryover balance elected to use to offset funding requirement | 2016-12-31 | 0 |
| Prefunding balance elected to use to offset funding requirement | 2016-12-31 | 7,329,245 |
| Additional cash requirement | 2016-12-31 | 0 |
| Contributions allocatedtoward minimum required contributions for current year | 2016-12-31 | 0 |
| Unpaid minimum required contributions for current year | 2016-12-31 | 0 |
| Unpaid minimum required contributions for all years | 2016-12-31 | 0 |
| Total participants, beginning-of-year | 2016-01-01 | 1,437 |
| Total number of active participants reported on line 7a of the Form 5500 | 2016-01-01 | 542 |
| Number of retired or separated participants receiving benefits | 2016-01-01 | 592 |
| Number of other retired or separated participants entitled to future benefits | 2016-01-01 | 123 |
| Total of all active and inactive participants | 2016-01-01 | 1,257 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2016-01-01 | 164 |
| Total participants | 2016-01-01 | 1,421 |
| 2015: OTTER TAIL CORPORATION PENSION PLAN 2015 401k membership |
|---|
| Total participants, beginning-of-year | 2015-01-01 | 1,449 |
| Total number of active participants reported on line 7a of the Form 5500 | 2015-01-01 | 581 |
| Number of retired or separated participants receiving benefits | 2015-01-01 | 569 |
| Number of other retired or separated participants entitled to future benefits | 2015-01-01 | 128 |
| Total of all active and inactive participants | 2015-01-01 | 1,278 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2015-01-01 | 159 |
| Total participants | 2015-01-01 | 1,437 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2015-01-01 | 2 |
| 2014: OTTER TAIL CORPORATION PENSION PLAN 2014 401k membership |
|---|
| Total participants, beginning-of-year | 2014-01-01 | 1,470 |
| Total number of active participants reported on line 7a of the Form 5500 | 2014-01-01 | 624 |
| Number of retired or separated participants receiving benefits | 2014-01-01 | 540 |
| Number of other retired or separated participants entitled to future benefits | 2014-01-01 | 130 |
| Total of all active and inactive participants | 2014-01-01 | 1,294 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2014-01-01 | 155 |
| Total participants | 2014-01-01 | 1,449 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2014-01-01 | 3 |
| 2013: OTTER TAIL CORPORATION PENSION PLAN 2013 401k membership |
|---|
| Total participants, beginning-of-year | 2013-01-01 | 1,477 |
| Total number of active participants reported on line 7a of the Form 5500 | 2013-01-01 | 674 |
| Number of retired or separated participants receiving benefits | 2013-01-01 | 524 |
| Number of other retired or separated participants entitled to future benefits | 2013-01-01 | 123 |
| Total of all active and inactive participants | 2013-01-01 | 1,321 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2013-01-01 | 149 |
| Total participants | 2013-01-01 | 1,470 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2013-01-01 | 2 |
| 2012: OTTER TAIL CORPORATION PENSION PLAN 2012 401k membership |
|---|
| Total participants, beginning-of-year | 2012-01-01 | 1,477 |
| Total number of active participants reported on line 7a of the Form 5500 | 2012-01-01 | 685 |
| Number of retired or separated participants receiving benefits | 2012-01-01 | 519 |
| Number of other retired or separated participants entitled to future benefits | 2012-01-01 | 121 |
| Total of all active and inactive participants | 2012-01-01 | 1,325 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2012-01-01 | 152 |
| Total participants | 2012-01-01 | 1,477 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2012-01-01 | 0 |
| 2011: OTTER TAIL CORPORATION PENSION PLAN 2011 401k membership |
|---|
| Total participants, beginning-of-year | 2011-01-01 | 1,492 |
| Total number of active participants reported on line 7a of the Form 5500 | 2011-01-01 | 706 |
| Number of retired or separated participants receiving benefits | 2011-01-01 | 511 |
| Number of other retired or separated participants entitled to future benefits | 2011-01-01 | 112 |
| Total of all active and inactive participants | 2011-01-01 | 1,329 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2011-01-01 | 148 |
| Total participants | 2011-01-01 | 1,477 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2011-01-01 | 4 |
| 2010: OTTER TAIL CORPORATION PENSION PLAN 2010 401k membership |
|---|
| Total participants, beginning-of-year | 2010-01-01 | 1,507 |
| Total number of active participants reported on line 7a of the Form 5500 | 2010-01-01 | 745 |
| Number of retired or separated participants receiving benefits | 2010-01-01 | 493 |
| Number of other retired or separated participants entitled to future benefits | 2010-01-01 | 105 |
| Total of all active and inactive participants | 2010-01-01 | 1,343 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2010-01-01 | 149 |
| Total participants | 2010-01-01 | 1,492 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2010-01-01 | 3 |
| 2009: OTTER TAIL CORPORATION PENSION PLAN 2009 401k membership |
|---|
| Total participants, beginning-of-year | 2009-01-01 | 1,532 |
| Total number of active participants reported on line 7a of the Form 5500 | 2009-01-01 | 783 |
| Number of retired or separated participants receiving benefits | 2009-01-01 | 481 |
| Number of other retired or separated participants entitled to future benefits | 2009-01-01 | 95 |
| Total of all active and inactive participants | 2009-01-01 | 1,359 |
| Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits | 2009-01-01 | 148 |
| Total participants | 2009-01-01 | 1,507 |
| Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested | 2009-01-01 | 9 |
| Measure | Date | Value |
|---|
| 2023 : OTTER TAIL CORPORATION PENSION PLAN 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $52,950 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $52,950 |
| Total income from all sources (including contributions) | 2023-12-31 | $36,239,944 |
| Total loss/gain on sale of assets | 2023-12-31 | $770,700 |
| Total of all expenses incurred | 2023-12-31 | $19,498,954 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $17,455,252 |
| Value of total assets at end of year | 2023-12-31 | $331,964,251 |
| Value of total assets at beginning of year | 2023-12-31 | $315,223,261 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $2,043,702 |
| Total interest from all sources | 2023-12-31 | $699 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $10,713,284 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2023-12-31 | $10,713,284 |
| Was this plan covered by a fidelity bond | 2023-12-31 | Yes |
| Value of fidelity bond cover | 2023-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2023-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2023-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $631,650 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $555,349 |
| Other income not declared elsewhere | 2023-12-31 | $6,731 |
| Administrative expenses (other) incurred | 2023-12-31 | $961,932 |
| Total non interest bearing cash at end of year | 2023-12-31 | $1,484,797 |
| Total non interest bearing cash at beginning of year | 2023-12-31 | $1,425,776 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Value of net income/loss | 2023-12-31 | $16,740,990 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $331,964,251 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $315,223,261 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2023-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2023-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2023-12-31 | No |
| Investment advisory and management fees | 2023-12-31 | $814,639 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2023-12-31 | $305,111,635 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-12-31 | $289,951,146 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $1,517,936 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $3,703,194 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $699 |
| Asset value of US Government securities at end of year | 2023-12-31 | $23,218,233 |
| Asset value of US Government securities at beginning of year | 2023-12-31 | $19,587,796 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2023-12-31 | $24,695,580 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2023-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2023-12-31 | No |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-12-31 | $17,455,252 |
| Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3 | 2023-12-31 | No |
| Did the plan have assets held for investment | 2023-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2023-12-31 | No |
| Aggregate proceeds on sale of assets | 2023-12-31 | $24,815,819 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $24,045,119 |
| Opinion of an independent qualified public accountant for this plan | 2023-12-31 | Unqualified |
| Accountancy firm name | 2023-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2023-12-31 | 450250958 |
| 2022 : OTTER TAIL CORPORATION PENSION PLAN 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-10,381,304 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-10,381,304 |
| Total income from all sources (including contributions) | 2022-12-31 | $-75,540,284 |
| Total loss/gain on sale of assets | 2022-12-31 | $638,314 |
| Total of all expenses incurred | 2022-12-31 | $17,849,696 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $16,904,995 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $0 |
| Value of total assets at end of year | 2022-12-31 | $315,223,261 |
| Value of total assets at beginning of year | 2022-12-31 | $408,613,241 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $944,701 |
| Total interest from all sources | 2022-12-31 | $552 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $10,569,177 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-12-31 | $10,569,177 |
| Administrative expenses professional fees incurred | 2022-12-31 | $269,922 |
| Was this plan covered by a fidelity bond | 2022-12-31 | Yes |
| Value of fidelity bond cover | 2022-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2022-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2022-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $555,349 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $425,705 |
| Other income not declared elsewhere | 2022-12-31 | $11,404 |
| Administrative expenses (other) incurred | 2022-12-31 | $114,576 |
| Total non interest bearing cash at end of year | 2022-12-31 | $1,425,776 |
| Total non interest bearing cash at beginning of year | 2022-12-31 | $1,401,164 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Value of net income/loss | 2022-12-31 | $-93,389,980 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $315,223,261 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $408,613,241 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2022-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2022-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2022-12-31 | No |
| Investment advisory and management fees | 2022-12-31 | $560,203 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-12-31 | $289,951,146 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-12-31 | $345,816,191 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $3,703,194 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $12,797,402 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $91 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $91 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $552 |
| Asset value of US Government securities at end of year | 2022-12-31 | $19,587,796 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $28,172,688 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-12-31 | $-76,378,427 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2022-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2022-12-31 | No |
| Contributions received in cash from employer | 2022-12-31 | $0 |
| Employer contributions (assets) at end of year | 2022-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2022-12-31 | $20,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $16,904,995 |
| Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3 | 2022-12-31 | No |
| Did the plan have assets held for investment | 2022-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2022-12-31 | No |
| Aggregate proceeds on sale of assets | 2022-12-31 | $40,208,759 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $39,570,445 |
| Opinion of an independent qualified public accountant for this plan | 2022-12-31 | Unqualified |
| Accountancy firm name | 2022-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2022-12-31 | 450250958 |
| 2021 : OTTER TAIL CORPORATION PENSION PLAN 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $3,267,662 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $3,267,662 |
| Total income from all sources (including contributions) | 2021-12-31 | $53,781,502 |
| Total loss/gain on sale of assets | 2021-12-31 | $0 |
| Total of all expenses incurred | 2021-12-31 | $17,164,375 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $16,199,422 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $20,000,000 |
| Value of total assets at end of year | 2021-12-31 | $408,613,241 |
| Value of total assets at beginning of year | 2021-12-31 | $371,996,114 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $964,953 |
| Total interest from all sources | 2021-12-31 | $3 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $8,776,047 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $8,776,047 |
| Administrative expenses professional fees incurred | 2021-12-31 | $175,831 |
| Was this plan covered by a fidelity bond | 2021-12-31 | Yes |
| Value of fidelity bond cover | 2021-12-31 | $10,000,000 |
| If this is an individual account plan, was there a blackout period | 2021-12-31 | No |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2021-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2021-12-31 | No |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $10,538,214 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $425,705 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $363,538 |
| Other income not declared elsewhere | 2021-12-31 | $5,868 |
| Administrative expenses (other) incurred | 2021-12-31 | $113,434 |
| Total non interest bearing cash at end of year | 2021-12-31 | $1,401,164 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Value of net income/loss | 2021-12-31 | $36,617,127 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $408,613,241 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $371,996,114 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2021-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2021-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2021-12-31 | No |
| Investment advisory and management fees | 2021-12-31 | $675,688 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $345,816,191 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $351,094,362 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $12,797,402 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $91 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $3 |
| Asset value of US Government securities at end of year | 2021-12-31 | $28,172,688 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $21,731,922 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2021-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2021-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2021-12-31 | No |
| Contributions received in cash from employer | 2021-12-31 | $20,000,000 |
| Employer contributions (assets) at end of year | 2021-12-31 | $20,000,000 |
| Employer contributions (assets) at beginning of year | 2021-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $16,199,422 |
| Was the provided the required notice or one of the exceptions to providing the black out period notice applied under 29 CFR 2520.101-3 | 2021-12-31 | No |
| Did the plan have assets held for investment | 2021-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2021-12-31 | No |
| Aggregate proceeds on sale of assets | 2021-12-31 | $126,721,321 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $126,721,321 |
| Opinion of an independent qualified public accountant for this plan | 2021-12-31 | Unqualified |
| Accountancy firm name | 2021-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2021-12-31 | 450250958 |
| 2020 : OTTER TAIL CORPORATION PENSION PLAN 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $-320,024 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $-320,024 |
| Total transfer of assets to this plan | 2020-12-31 | $0 |
| Total transfer of assets from this plan | 2020-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $0 |
| Total income from all sources (including contributions) | 2020-12-31 | $45,962,049 |
| Total loss/gain on sale of assets | 2020-12-31 | $0 |
| Total of all expenses incurred | 2020-12-31 | $16,618,007 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $15,735,995 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $10,000,000 |
| Value of total assets at end of year | 2020-12-31 | $371,996,114 |
| Value of total assets at beginning of year | 2020-12-31 | $342,652,072 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $882,012 |
| Total interest from all sources | 2020-12-31 | $450 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $7,687,880 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2020-12-31 | $7,687,880 |
| Administrative expenses professional fees incurred | 2020-12-31 | $149,825 |
| Was this plan covered by a fidelity bond | 2020-12-31 | Yes |
| Value of fidelity bond cover | 2020-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2020-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $10,538,214 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $10,816,904 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $363,538 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $393,893 |
| Other income not declared elsewhere | 2020-12-31 | $15,584 |
| Administrative expenses (other) incurred | 2020-12-31 | $112,275 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Value of net income/loss | 2020-12-31 | $29,344,042 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $371,996,114 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $342,652,072 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2020-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2020-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2020-12-31 | No |
| Investment advisory and management fees | 2020-12-31 | $605,112 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2020-12-31 | $351,094,362 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2020-12-31 | $320,241,275 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $450 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2020-12-31 | $28,578,159 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2020-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2020-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2020-12-31 | No |
| Contributions received in cash from employer | 2020-12-31 | $10,000,000 |
| Employer contributions (assets) at end of year | 2020-12-31 | $10,000,000 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $11,200,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $15,735,995 |
| Contract administrator fees | 2020-12-31 | $14,800 |
| Did the plan have assets held for investment | 2020-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2020-12-31 | No |
| Aggregate proceeds on sale of assets | 2020-12-31 | $11,237,109 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $11,237,109 |
| Opinion of an independent qualified public accountant for this plan | 2020-12-31 | Disclaimer |
| Accountancy firm name | 2020-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2020-12-31 | 450250958 |
| 2019 : OTTER TAIL CORPORATION PENSION PLAN 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $-1,935,454 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $-1,935,454 |
| Total transfer of assets to this plan | 2019-12-31 | $0 |
| Total transfer of assets from this plan | 2019-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $0 |
| Total income from all sources (including contributions) | 2019-12-31 | $65,067,752 |
| Total loss/gain on sale of assets | 2019-12-31 | $0 |
| Total of all expenses incurred | 2019-12-31 | $15,902,807 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $15,069,345 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $11,200,000 |
| Value of total assets at end of year | 2019-12-31 | $342,652,072 |
| Value of total assets at beginning of year | 2019-12-31 | $293,487,127 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $833,462 |
| Total interest from all sources | 2019-12-31 | $2,640 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $9,147,789 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2019-12-31 | $9,147,789 |
| Administrative expenses professional fees incurred | 2019-12-31 | $149,177 |
| Was this plan covered by a fidelity bond | 2019-12-31 | Yes |
| Value of fidelity bond cover | 2019-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2019-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $9,539,904 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $11,475,358 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $393,893 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $398,153 |
| Other income not declared elsewhere | 2019-12-31 | $18,631 |
| Administrative expenses (other) incurred | 2019-12-31 | $111,120 |
| Total non interest bearing cash at end of year | 2019-12-31 | $1,277,000 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $1,204,573 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Value of net income/loss | 2019-12-31 | $49,164,945 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $342,652,072 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $293,487,127 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2019-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2019-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2019-12-31 | No |
| Investment advisory and management fees | 2019-12-31 | $558,465 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2019-12-31 | $320,241,275 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2019-12-31 | $257,909,043 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $2,640 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2019-12-31 | $46,634,146 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2019-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2019-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2019-12-31 | No |
| Contributions received in cash from employer | 2019-12-31 | $11,200,000 |
| Employer contributions (assets) at end of year | 2019-12-31 | $11,200,000 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $22,500,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $15,069,345 |
| Contract administrator fees | 2019-12-31 | $14,700 |
| Did the plan have assets held for investment | 2019-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2019-12-31 | No |
| Aggregate proceeds on sale of assets | 2019-12-31 | $22,537,091 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $22,537,091 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2019-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2019-12-31 | Disclaimer |
| Accountancy firm name | 2019-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2019-12-31 | 450250958 |
| 2018 : OTTER TAIL CORPORATION PENSION PLAN 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2018-12-31 | $155,297 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $155,297 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $0 |
| Total income from all sources (including contributions) | 2018-12-31 | $1,333,323 |
| Total loss/gain on sale of assets | 2018-12-31 | $0 |
| Total of all expenses incurred | 2018-12-31 | $14,868,678 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $14,105,104 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $22,500,000 |
| Value of total assets at end of year | 2018-12-31 | $293,487,127 |
| Value of total assets at beginning of year | 2018-12-31 | $307,022,482 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $763,574 |
| Total interest from all sources | 2018-12-31 | $640 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $7,236,375 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2018-12-31 | $7,236,375 |
| Administrative expenses professional fees incurred | 2018-12-31 | $141,442 |
| Was this plan covered by a fidelity bond | 2018-12-31 | Yes |
| Value of fidelity bond cover | 2018-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2018-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $11,475,358 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $11,320,061 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $398,153 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $576,407 |
| Other income not declared elsewhere | 2018-12-31 | $20,850 |
| Administrative expenses (other) incurred | 2018-12-31 | $104,192 |
| Total non interest bearing cash at end of year | 2018-12-31 | $1,204,573 |
| Total non interest bearing cash at beginning of year | 2018-12-31 | $1,127,567 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Value of net income/loss | 2018-12-31 | $-13,535,355 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $293,487,127 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $307,022,482 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2018-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2018-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2018-12-31 | No |
| Investment advisory and management fees | 2018-12-31 | $503,290 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2018-12-31 | $257,909,043 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2018-12-31 | $273,998,447 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $640 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2018-12-31 | $-28,579,839 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2018-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2018-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2018-12-31 | No |
| Contributions received in cash from employer | 2018-12-31 | $22,500,000 |
| Employer contributions (assets) at end of year | 2018-12-31 | $22,500,000 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $20,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $14,105,104 |
| Contract administrator fees | 2018-12-31 | $14,650 |
| Did the plan have assets held for investment | 2018-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2018-12-31 | No |
| Aggregate proceeds on sale of assets | 2018-12-31 | $20,073,130 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $20,073,130 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2018-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2018-12-31 | Disclaimer |
| Accountancy firm name | 2018-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2018-12-31 | 450250958 |
| 2017 : OTTER TAIL CORPORATION PENSION PLAN 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2017-12-31 | $879,238 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $879,238 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $0 |
| Total income from all sources (including contributions) | 2017-12-31 | $66,169,046 |
| Total loss/gain on sale of assets | 2017-12-31 | $79,587 |
| Total of all expenses incurred | 2017-12-31 | $14,584,923 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $13,169,108 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $20,000,000 |
| Value of total assets at end of year | 2017-12-31 | $307,022,482 |
| Value of total assets at beginning of year | 2017-12-31 | $255,438,359 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $1,415,815 |
| Total interest from all sources | 2017-12-31 | $128 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $7,037,085 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2017-12-31 | $7,037,085 |
| Administrative expenses professional fees incurred | 2017-12-31 | $148,822 |
| Was this plan covered by a fidelity bond | 2017-12-31 | Yes |
| Value of fidelity bond cover | 2017-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2017-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $11,320,061 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $20,042,262 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $576,407 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $291,821 |
| Other income not declared elsewhere | 2017-12-31 | $24,868 |
| Administrative expenses (other) incurred | 2017-12-31 | $745,239 |
| Total non interest bearing cash at end of year | 2017-12-31 | $1,127,567 |
| Total non interest bearing cash at beginning of year | 2017-12-31 | $1,092,716 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Value of net income/loss | 2017-12-31 | $51,584,123 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $307,022,482 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $255,438,359 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2017-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2017-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2017-12-31 | No |
| Investment advisory and management fees | 2017-12-31 | $507,154 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2017-12-31 | $273,998,447 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2017-12-31 | $234,011,560 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $128 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2017-12-31 | $38,148,140 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2017-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2017-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2017-12-31 | No |
| Contributions received in cash from employer | 2017-12-31 | $20,000,000 |
| Employer contributions (assets) at end of year | 2017-12-31 | $20,000,000 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $13,169,108 |
| Contract administrator fees | 2017-12-31 | $14,600 |
| Did the plan have assets held for investment | 2017-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2017-12-31 | No |
| Aggregate proceeds on sale of assets | 2017-12-31 | $30,046,147 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $29,966,560 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2017-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2017-12-31 | Disclaimer |
| Accountancy firm name | 2017-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2017-12-31 | 450250958 |
| 2016 : OTTER TAIL CORPORATION PENSION PLAN 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $2,079,030 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $2,079,030 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $0 |
| Total income from all sources (including contributions) | 2016-12-31 | $25,139,051 |
| Total loss/gain on sale of assets | 2016-12-31 | $0 |
| Total of all expenses incurred | 2016-12-31 | $14,336,331 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $12,985,494 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $0 |
| Value of total assets at end of year | 2016-12-31 | $255,438,359 |
| Value of total assets at beginning of year | 2016-12-31 | $244,635,639 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $1,350,837 |
| Total interest from all sources | 2016-12-31 | $81 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $6,281,452 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2016-12-31 | $6,281,452 |
| Administrative expenses professional fees incurred | 2016-12-31 | $136,457 |
| Was this plan covered by a fidelity bond | 2016-12-31 | Yes |
| Value of fidelity bond cover | 2016-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2016-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $20,042,262 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $17,963,232 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $291,821 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $294,862 |
| Other income not declared elsewhere | 2016-12-31 | $63,604 |
| Administrative expenses (other) incurred | 2016-12-31 | $605,378 |
| Total non interest bearing cash at end of year | 2016-12-31 | $1,092,716 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $998,270 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Value of net income/loss | 2016-12-31 | $10,802,720 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $255,438,359 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $244,635,639 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2016-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2016-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2016-12-31 | No |
| Investment advisory and management fees | 2016-12-31 | $594,402 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2016-12-31 | $234,011,560 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2016-12-31 | $215,379,275 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $81 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2016-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2016-12-31 | $16,714,884 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2016-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2016-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2016-12-31 | No |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $12,985,494 |
| Contract administrator fees | 2016-12-31 | $14,600 |
| Did the plan have assets held for investment | 2016-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2016-12-31 | No |
| Aggregate proceeds on sale of assets | 2016-12-31 | $10,103,582 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $10,103,582 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2016-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2016-12-31 | Disclaimer |
| Accountancy firm name | 2016-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2016-12-31 | 450250958 |
| 2015 : OTTER TAIL CORPORATION PENSION PLAN 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-1,834,612 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-1,834,612 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $0 |
| Total income from all sources (including contributions) | 2015-12-31 | $1,443,967 |
| Total loss/gain on sale of assets | 2015-12-31 | $0 |
| Total of all expenses incurred | 2015-12-31 | $12,778,549 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $11,825,951 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $10,000,000 |
| Value of total assets at end of year | 2015-12-31 | $244,635,639 |
| Value of total assets at beginning of year | 2015-12-31 | $255,970,221 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $952,598 |
| Total interest from all sources | 2015-12-31 | $3 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $6,700,433 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $6,700,433 |
| Administrative expenses professional fees incurred | 2015-12-31 | $118,999 |
| Was this plan covered by a fidelity bond | 2015-12-31 | Yes |
| Value of fidelity bond cover | 2015-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2015-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Participant contributions at end of year | 2015-12-31 | $0 |
| Participant contributions at beginning of year | 2015-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $17,963,232 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $9,800,769 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $294,862 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $346,742 |
| Other income not declared elsewhere | 2015-12-31 | $31,466 |
| Administrative expenses (other) incurred | 2015-12-31 | $207,609 |
| Total non interest bearing cash at end of year | 2015-12-31 | $998,270 |
| Total non interest bearing cash at beginning of year | 2015-12-31 | $1,034,296 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Value of net income/loss | 2015-12-31 | $-11,334,582 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $244,635,639 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $255,970,221 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2015-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2015-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2015-12-31 | No |
| Investment advisory and management fees | 2015-12-31 | $611,460 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2015-12-31 | $215,379,275 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2015-12-31 | $234,788,414 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $3 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2015-12-31 | $-13,453,323 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2015-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2015-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2015-12-31 | No |
| Contributions received in cash from employer | 2015-12-31 | $10,000,000 |
| Employer contributions (assets) at end of year | 2015-12-31 | $10,000,000 |
| Employer contributions (assets) at beginning of year | 2015-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2015-12-31 | $11,825,951 |
| Contract administrator fees | 2015-12-31 | $14,530 |
| Did the plan have assets held for investment | 2015-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2015-12-31 | No |
| Aggregate proceeds on sale of assets | 2015-12-31 | $20,045,091 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $20,045,091 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2015-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2015-12-31 | Disclaimer |
| Accountancy firm name | 2015-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2015-12-31 | 450250958 |
| 2014 : OTTER TAIL CORPORATION PENSION PLAN 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $630,894 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $630,894 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $0 |
| Total income from all sources (including contributions) | 2014-12-31 | $32,895,857 |
| Total loss/gain on sale of assets | 2014-12-31 | $0 |
| Total of all expenses incurred | 2014-12-31 | $11,423,149 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $10,797,571 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $10,000,000 |
| Value of total assets at end of year | 2014-12-31 | $255,970,221 |
| Value of total assets at beginning of year | 2014-12-31 | $234,497,513 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $625,578 |
| Total interest from all sources | 2014-12-31 | $6 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $6,834,443 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2014-12-31 | $6,834,443 |
| Administrative expenses professional fees incurred | 2014-12-31 | $102,106 |
| Was this plan covered by a fidelity bond | 2014-12-31 | Yes |
| Value of fidelity bond cover | 2014-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2014-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Participant contributions at end of year | 2014-12-31 | $0 |
| Participant contributions at beginning of year | 2014-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2014-12-31 | $9,800,769 |
| Assets. Other investments not covered elsewhere at beginning of year | 2014-12-31 | $9,169,875 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $346,742 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $296,928 |
| Other income not declared elsewhere | 2014-12-31 | $138,170 |
| Administrative expenses (other) incurred | 2014-12-31 | $72,030 |
| Total non interest bearing cash at end of year | 2014-12-31 | $1,034,296 |
| Total non interest bearing cash at beginning of year | 2014-12-31 | $880,809 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Value of net income/loss | 2014-12-31 | $21,472,708 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $255,970,221 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $234,497,513 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2014-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2014-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2014-12-31 | No |
| Investment advisory and management fees | 2014-12-31 | $436,942 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2014-12-31 | $234,788,414 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2014-12-31 | $204,149,901 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $6 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2014-12-31 | $15,292,344 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2014-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2014-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2014-12-31 | No |
| Contributions received in cash from employer | 2014-12-31 | $10,000,000 |
| Employer contributions (assets) at end of year | 2014-12-31 | $10,000,000 |
| Employer contributions (assets) at beginning of year | 2014-12-31 | $20,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2014-12-31 | $10,797,571 |
| Contract administrator fees | 2014-12-31 | $14,500 |
| Did the plan have assets held for investment | 2014-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2014-12-31 | No |
| Aggregate proceeds on sale of assets | 2014-12-31 | $20,041,620 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $20,041,620 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2014-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2014-12-31 | Disclaimer |
| Accountancy firm name | 2014-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2014-12-31 | 450250958 |
| 2013 : OTTER TAIL CORPORATION PENSION PLAN 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $603,859 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $603,859 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $0 |
| Total income from all sources (including contributions) | 2013-12-31 | $43,554,659 |
| Total loss/gain on sale of assets | 2013-12-31 | $0 |
| Total of all expenses incurred | 2013-12-31 | $11,177,060 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $10,438,487 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $20,000,000 |
| Value of total assets at end of year | 2013-12-31 | $234,497,513 |
| Value of total assets at beginning of year | 2013-12-31 | $202,119,914 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $738,573 |
| Total interest from all sources | 2013-12-31 | $9 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $5,555,609 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2013-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2013-12-31 | $5,555,609 |
| Administrative expenses professional fees incurred | 2013-12-31 | $105,792 |
| Was this plan covered by a fidelity bond | 2013-12-31 | Yes |
| Value of fidelity bond cover | 2013-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2013-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2013-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2013-12-31 | $9,169,875 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $296,928 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $248,417 |
| Other income not declared elsewhere | 2013-12-31 | $45,470 |
| Administrative expenses (other) incurred | 2013-12-31 | $151,069 |
| Total non interest bearing cash at end of year | 2013-12-31 | $880,809 |
| Total non interest bearing cash at beginning of year | 2013-12-31 | $855,716 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Value of net income/loss | 2013-12-31 | $32,377,599 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $234,497,513 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $202,119,914 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2013-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2013-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2013-12-31 | No |
| Investment advisory and management fees | 2013-12-31 | $481,712 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2013-12-31 | $204,149,901 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2013-12-31 | $182,440,167 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $8,567,269 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $8,345 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $8,345 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $9 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2013-12-31 | $17,349,712 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2013-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2013-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2013-12-31 | No |
| Contributions received in cash from employer | 2013-12-31 | $20,000,000 |
| Employer contributions (assets) at end of year | 2013-12-31 | $20,000,000 |
| Employer contributions (assets) at beginning of year | 2013-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2013-12-31 | $10,438,487 |
| Contract administrator fees | 2013-12-31 | $0 |
| Did the plan have assets held for investment | 2013-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2013-12-31 | No |
| Aggregate proceeds on sale of assets | 2013-12-31 | $10,310,070 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $10,310,070 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2013-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2013-12-31 | Disclaimer |
| Accountancy firm name | 2013-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2013-12-31 | 450250958 |
| 2012 : OTTER TAIL CORPORATION PENSION PLAN 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $0 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $1,768,124 |
| Total income from all sources (including contributions) | 2012-12-31 | $34,430,417 |
| Total loss/gain on sale of assets | 2012-12-31 | $0 |
| Total of all expenses incurred | 2012-12-31 | $10,913,498 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $10,231,746 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $10,000,000 |
| Value of total assets at end of year | 2012-12-31 | $202,119,914 |
| Value of total assets at beginning of year | 2012-12-31 | $180,371,119 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $681,752 |
| Total interest from all sources | 2012-12-31 | $8 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $5,609,299 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2012-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2012-12-31 | $5,609,299 |
| Administrative expenses professional fees incurred | 2012-12-31 | $80,650 |
| Was this plan covered by a fidelity bond | 2012-12-31 | Yes |
| Value of fidelity bond cover | 2012-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2012-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2012-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $248,417 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $826,928 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $1,768,124 |
| Other income not declared elsewhere | 2012-12-31 | $19,018 |
| Administrative expenses (other) incurred | 2012-12-31 | $188,368 |
| Total non interest bearing cash at end of year | 2012-12-31 | $855,716 |
| Total non interest bearing cash at beginning of year | 2012-12-31 | $941,216 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Value of net income/loss | 2012-12-31 | $23,516,919 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $202,119,914 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $178,602,995 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2012-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2012-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2012-12-31 | No |
| Investment advisory and management fees | 2012-12-31 | $412,734 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2012-12-31 | $182,440,167 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2012-12-31 | $159,561,273 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $8,567,269 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $9,041,702 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $8,345 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $8 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2012-12-31 | $18,190,153 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $611,939 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2012-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2012-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2012-12-31 | No |
| Contributions received in cash from employer | 2012-12-31 | $10,000,000 |
| Employer contributions (assets) at end of year | 2012-12-31 | $10,000,000 |
| Employer contributions (assets) at beginning of year | 2012-12-31 | $10,000,000 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2012-12-31 | $10,231,746 |
| Contract administrator fees | 2012-12-31 | $0 |
| Did the plan have assets held for investment | 2012-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2012-12-31 | No |
| Aggregate proceeds on sale of assets | 2012-12-31 | $124,482 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $124,482 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2012-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2012-12-31 | Disclaimer |
| Accountancy firm name | 2012-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2012-12-31 | 450250958 |
| 2011 : OTTER TAIL CORPORATION PENSION PLAN 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2011-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $0 |
| Total transfer of assets to this plan | 2011-12-31 | $0 |
| Total transfer of assets from this plan | 2011-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $1,768,124 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $13,577,689 |
| Expenses. Interest paid | 2011-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2011-12-31 | $0 |
| Total income from all sources (including contributions) | 2011-12-31 | $17,258,108 |
| Total loss/gain on sale of assets | 2011-12-31 | $19,507 |
| Total of all expenses incurred | 2011-12-31 | $9,963,724 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $9,466,030 |
| Expenses. Certain deemed distributions of participant loans | 2011-12-31 | $0 |
| Value of total corrective distributions | 2011-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $10,000,000 |
| Value of total assets at end of year | 2011-12-31 | $180,371,119 |
| Value of total assets at beginning of year | 2011-12-31 | $184,886,301 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $497,694 |
| Total income from rents | 2011-12-31 | $0 |
| Total interest from all sources | 2011-12-31 | $-14 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $4,630,037 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2011-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2011-12-31 | $4,630,037 |
| Assets. Real estate other than employer real property at end of year | 2011-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $187,441 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2011-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2011-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2011-12-31 | Yes |
| Value of fidelity bond cover | 2011-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2011-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Contributions received from participants | 2011-12-31 | $0 |
| Participant contributions at end of year | 2011-12-31 | $0 |
| Participant contributions at beginning of year | 2011-12-31 | $0 |
| Participant contributions at end of year | 2011-12-31 | $0 |
| Participant contributions at beginning of year | 2011-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2011-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2011-12-31 | $0 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2011-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2011-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $826,928 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $14,365,335 |
| Assets. Loans (other than to participants) at end of year | 2011-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2011-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $1,768,124 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $13,577,689 |
| Other income not declared elsewhere | 2011-12-31 | $0 |
| Administrative expenses (other) incurred | 2011-12-31 | $95,761 |
| Liabilities. Value of operating payables at end of year | 2011-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2011-12-31 | $0 |
| Total non interest bearing cash at end of year | 2011-12-31 | $941,216 |
| Total non interest bearing cash at beginning of year | 2011-12-31 | $0 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Income. Non cash contributions | 2011-12-31 | $0 |
| Value of net income/loss | 2011-12-31 | $7,294,384 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $178,602,995 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $171,308,612 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2011-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2011-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2011-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2011-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2011-12-31 | $0 |
| Investment advisory and management fees | 2011-12-31 | $214,492 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2011-12-31 | $159,561,273 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2011-12-31 | $161,239,389 |
| Value of interest in pooled separate accounts at end of year | 2011-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2011-12-31 | $0 |
| Interest on participant loans | 2011-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2011-12-31 | $0 |
| Interest earned on other investments | 2011-12-31 | $0 |
| Income. Interest from US Government securities | 2011-12-31 | $-7 |
| Income. Interest from corporate debt instruments | 2011-12-31 | $0 |
| Value of interest in master investment trust accounts at end of year | 2011-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2011-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $9,041,702 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $878,963 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $8,400,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $8,400,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $-7 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2011-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2011-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2011-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2011-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2011-12-31 | $0 |
| Asset value of US Government securities at end of year | 2011-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $2,614 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2011-12-31 | $2,877,376 |
| Net investment gain/loss from pooled separate accounts | 2011-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $-268,798 |
| Net gain/loss from 103.12 investment entities | 2011-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2011-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2011-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2011-12-31 | No |
| Assets. Invements in employer securities at end of year | 2011-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2011-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2011-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2011-12-31 | $0 |
| Contributions received in cash from employer | 2011-12-31 | $10,000,000 |
| Employer contributions (assets) at end of year | 2011-12-31 | $10,000,000 |
| Employer contributions (assets) at beginning of year | 2011-12-31 | $0 |
| Income. Dividends from preferred stock | 2011-12-31 | $0 |
| Income. Dividends from common stock | 2011-12-31 | $0 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2011-12-31 | $9,466,030 |
| Asset. Corporate debt instrument preferred debt at end of year | 2011-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2011-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2011-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2011-12-31 | $0 |
| Contract administrator fees | 2011-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2011-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2011-12-31 | $0 |
| Liabilities. Value of benefit claims payable at end of year | 2011-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2011-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2011-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2011-12-31 | $0 |
| Did the plan have assets held for investment | 2011-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2011-12-31 | No |
| Aggregate proceeds on sale of assets | 2011-12-31 | $22,121 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $2,614 |
| Liabilities. Value of acquisition indebtedness at end of year | 2011-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2011-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2011-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2011-12-31 | Disclaimer |
| Accountancy firm name | 2011-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2011-12-31 | 450250958 |
| 2010 : OTTER TAIL CORPORATION PENSION PLAN 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2010-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $35 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $35 |
| Total transfer of assets to this plan | 2010-12-31 | $0 |
| Total transfer of assets from this plan | 2010-12-31 | $0 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $13,577,689 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $8,924 |
| Expenses. Interest paid | 2010-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2010-12-31 | $0 |
| Total income from all sources (including contributions) | 2010-12-31 | $20,611,490 |
| Total loss/gain on sale of assets | 2010-12-31 | $1,861,859 |
| Total of all expenses incurred | 2010-12-31 | $9,850,349 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $9,122,184 |
| Expenses. Certain deemed distributions of participant loans | 2010-12-31 | $0 |
| Value of total corrective distributions | 2010-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $0 |
| Value of total assets at end of year | 2010-12-31 | $184,886,301 |
| Value of total assets at beginning of year | 2010-12-31 | $160,556,395 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $728,165 |
| Total income from rents | 2010-12-31 | $0 |
| Total interest from all sources | 2010-12-31 | $1,239,799 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $5,898,623 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2010-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2010-12-31 | $5,792,767 |
| Assets. Real estate other than employer real property at end of year | 2010-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $119,803 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2010-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2010-12-31 | $0 |
| Was this plan covered by a fidelity bond | 2010-12-31 | Yes |
| Value of fidelity bond cover | 2010-12-31 | $10,000,000 |
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2010-12-31 | $0 |
| Were there any nonexempt tranactions with any party-in-interest | 2010-12-31 | No |
| Contributions received from participants | 2010-12-31 | $0 |
| Participant contributions at end of year | 2010-12-31 | $0 |
| Participant contributions at beginning of year | 2010-12-31 | $0 |
| Participant contributions at end of year | 2010-12-31 | $0 |
| Participant contributions at beginning of year | 2010-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2010-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2010-12-31 | $216,554 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2010-12-31 | $0 |
| Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries) | 2010-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $14,365,335 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $855,142 |
| Assets. Loans (other than to participants) at end of year | 2010-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2010-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $13,577,689 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $8,924 |
| Other income not declared elsewhere | 2010-12-31 | $334 |
| Administrative expenses (other) incurred | 2010-12-31 | $168,029 |
| Liabilities. Value of operating payables at end of year | 2010-12-31 | $0 |
| Liabilities. Value of operating payables at beginning of year | 2010-12-31 | $0 |
| Total non interest bearing cash at end of year | 2010-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2010-12-31 | $2,228 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Income. Non cash contributions | 2010-12-31 | $0 |
| Value of net income/loss | 2010-12-31 | $10,761,141 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $171,308,612 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $160,547,471 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2010-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2010-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2010-12-31 | No |
| Assets. partnership/joint venture interests at end of year | 2010-12-31 | $0 |
| Assets. partnership/joint venture interests at beginning of year | 2010-12-31 | $0 |
| Investment advisory and management fees | 2010-12-31 | $440,333 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2010-12-31 | $161,239,389 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2010-12-31 | $58,683,095 |
| Value of interest in pooled separate accounts at end of year | 2010-12-31 | $0 |
| Value of interest in pooled separate accounts at beginning of year | 2010-12-31 | $0 |
| Interest on participant loans | 2010-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2010-12-31 | $0 |
| Interest earned on other investments | 2010-12-31 | $7,051 |
| Income. Interest from US Government securities | 2010-12-31 | $796,444 |
| Income. Interest from corporate debt instruments | 2010-12-31 | $441,416 |
| Value of interest in master investment trust accounts at end of year | 2010-12-31 | $0 |
| Value of interest in master investment trust accounts at beginning of year | 2010-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $878,963 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $22,552,167 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $8,400,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $894 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $894 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $-5,112 |
| Assets. Value of investments in 103.12 investment entities at end of year | 2010-12-31 | $0 |
| Assets. Value of investments in 103.12 investment entities at beginning of year | 2010-12-31 | $0 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2010-12-31 | $0 |
| Asset value of US Government securities at end of year | 2010-12-31 | $2,614 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $29,355,845 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2010-12-31 | $12,077,422 |
| Net investment gain/loss from pooled separate accounts | 2010-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $-466,582 |
| Net gain/loss from 103.12 investment entities | 2010-12-31 | $0 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2010-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2010-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2010-12-31 | No |
| Assets. Invements in employer securities at end of year | 2010-12-31 | $0 |
| Assets. Invements in employer securities at beginning of year | 2010-12-31 | $0 |
| Assets. Value of employer real property at end of year | 2010-12-31 | $0 |
| Assets. Value of employer real property at beginning of year | 2010-12-31 | $0 |
| Contributions received in cash from employer | 2010-12-31 | $0 |
| Employer contributions (assets) at end of year | 2010-12-31 | $0 |
| Employer contributions (assets) at beginning of year | 2010-12-31 | $20,000,000 |
| Income. Dividends from preferred stock | 2010-12-31 | $0 |
| Income. Dividends from common stock | 2010-12-31 | $105,856 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2010-12-31 | $9,122,184 |
| Asset. Corporate debt instrument preferred debt at end of year | 2010-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2010-12-31 | $6,124,310 |
| Asset. Corporate debt instrument debt (other) at end of year | 2010-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2010-12-31 | $4,491,622 |
| Contract administrator fees | 2010-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2010-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2010-12-31 | $18,274,538 |
| Liabilities. Value of benefit claims payable at end of year | 2010-12-31 | $0 |
| Liabilities. Value of benefit claims payable at beginning of year | 2010-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at end of year | 2010-12-31 | $0 |
| Assets. Value of buildings and other operty used in plan operation at beginning of year | 2010-12-31 | $0 |
| Did the plan have assets held for investment | 2010-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2010-12-31 | No |
| Aggregate proceeds on sale of assets | 2010-12-31 | $71,714,421 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $69,852,562 |
| Liabilities. Value of acquisition indebtedness at end of year | 2010-12-31 | $0 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2010-12-31 | $0 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2010-12-31 | Yes |
| Opinion of an independent qualified public accountant for this plan | 2010-12-31 | Disclaimer |
| Accountancy firm name | 2010-12-31 | EIDE BAILLY LLP |
| Accountancy firm EIN | 2010-12-31 | 450250958 |
| 2009 : OTTER TAIL CORPORATION PENSION PLAN 2009 401k financial data |
|---|
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2009-12-31 | $0 |
