BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. has sponsored the creation of one or more 401k plans.
| Measure | Date | Value |
|---|
| 2023 : RUSSELL 2000 INDEX FUND B 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $79,525,174 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $79,525,174 |
| Total transfer of assets to this plan | 2023-12-31 | $24,166,779 |
| Total transfer of assets from this plan | 2023-12-31 | $45,459,913 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $226,973 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $12,097 |
| Total income from all sources (including contributions) | 2023-12-31 | $79,787,632 |
| Total of all expenses incurred | 2023-12-31 | $18,360 |
| Value of total assets at end of year | 2023-12-31 | $538,709,051 |
| Value of total assets at beginning of year | 2023-12-31 | $480,018,037 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $18,360 |
| Total interest from all sources | 2023-12-31 | $1,326 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $217,598 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $102 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $226,973 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $12,097 |
| Administrative expenses (other) incurred | 2023-12-31 | $2,827 |
| Value of net income/loss | 2023-12-31 | $79,769,272 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $538,482,078 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $480,005,940 |
| Investment advisory and management fees | 2023-12-31 | $7,675 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $538,466,668 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $479,992,935 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $24,785 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $1,326 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $261,132 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $179,983 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $179,983 |
| 2022 : RUSSELL 2000 INDEX FUND B 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-117,985,261 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-117,985,261 |
| Total transfer of assets to this plan | 2022-12-31 | $53,567,771 |
| Total transfer of assets from this plan | 2022-12-31 | $126,306,502 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $12,097 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $494,681 |
| Total income from all sources (including contributions) | 2022-12-31 | $-135,095,690 |
| Total of all expenses incurred | 2022-12-31 | $17,121 |
| Value of total assets at end of year | 2022-12-31 | $480,018,037 |
| Value of total assets at beginning of year | 2022-12-31 | $688,352,163 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $17,121 |
| Total interest from all sources | 2022-12-31 | $477 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Administrative expenses professional fees incurred | 2022-12-31 | $7,199 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $102 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $485,422 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $12,097 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $494,681 |
| Administrative expenses (other) incurred | 2022-12-31 | $2,958 |
| Value of net income/loss | 2022-12-31 | $-135,112,811 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $480,005,940 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $687,857,482 |
| Investment advisory and management fees | 2022-12-31 | $6,964 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $479,992,935 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $687,841,591 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $25,150 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $25,150 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $477 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-17,110,906 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $184,813 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $184,813 |
| 2021 : RUSSELL 2000 INDEX FUND B 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $-114,269,037 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $-114,269,037 |
| Total transfer of assets to this plan | 2021-12-31 | $157,530,757 |
| Total transfer of assets from this plan | 2021-12-31 | $498,678,665 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $494,681 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $3,343,875 |
| Total income from all sources (including contributions) | 2021-12-31 | $129,573,333 |
| Total of all expenses incurred | 2021-12-31 | $13,048 |
| Value of total assets at end of year | 2021-12-31 | $688,352,163 |
| Value of total assets at beginning of year | 2021-12-31 | $902,788,980 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $13,048 |
| Total interest from all sources | 2021-12-31 | $64 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Administrative expenses professional fees incurred | 2021-12-31 | $3,346 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $485,422 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $3,334,827 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $494,681 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $3,343,875 |
| Administrative expenses (other) incurred | 2021-12-31 | $3,086 |
| Value of net income/loss | 2021-12-31 | $129,560,285 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $687,857,482 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $899,445,105 |
| Investment advisory and management fees | 2021-12-31 | $6,616 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $687,841,591 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $899,429,153 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $25,150 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $64 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $243,842,306 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $2,228,078 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $2,228,078 |
| 2020 : RUSSELL 2000 INDEX FUND B 2020 401k financial data |
|---|
| Total transfer of assets to this plan | 2020-12-31 | $250,974,136 |
| Total transfer of assets from this plan | 2020-12-31 | $211,419,528 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $3,343,875 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $441,437 |
| Total income from all sources (including contributions) | 2020-12-31 | $152,454,487 |
| Total of all expenses incurred | 2020-12-31 | $13,050 |
| Value of total assets at end of year | 2020-12-31 | $902,788,980 |
| Value of total assets at beginning of year | 2020-12-31 | $707,890,497 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $13,050 |
| Total interest from all sources | 2020-12-31 | $183 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Administrative expenses professional fees incurred | 2020-12-31 | $3,710 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $3,334,827 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $432,362 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $3,343,875 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $441,437 |
| Administrative expenses (other) incurred | 2020-12-31 | $3,182 |
| Value of net income/loss | 2020-12-31 | $152,441,437 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $899,445,105 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $707,449,060 |
| Investment advisory and management fees | 2020-12-31 | $6,158 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $899,429,153 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $707,433,135 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $183 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $152,454,304 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $191,172 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $191,172 |
| 2019 : RUSSELL 2000 INDEX FUND B 2019 401k financial data |
|---|
| Total transfer of assets to this plan | 2019-12-31 | $71,816,294 |
| Total transfer of assets from this plan | 2019-12-31 | $109,406,527 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $441,437 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $537,851 |
| Total income from all sources (including contributions) | 2019-12-31 | $150,875,642 |
| Total of all expenses incurred | 2019-12-31 | $18,465 |
| Value of total assets at end of year | 2019-12-31 | $707,890,497 |
| Value of total assets at beginning of year | 2019-12-31 | $594,719,967 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $18,465 |
| Total interest from all sources | 2019-12-31 | $588 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Administrative expenses professional fees incurred | 2019-12-31 | $5,559 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $432,362 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $553,061 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $441,437 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $537,851 |
| Value of net income/loss | 2019-12-31 | $150,857,177 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $707,449,060 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $594,182,116 |
| Investment advisory and management fees | 2019-12-31 | $12,906 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $707,433,135 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $594,141,906 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $588 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $150,875,054 |
| 2018 : RUSSELL 2000 INDEX FUND B 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-152,133,463 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-152,133,463 |
| Total transfer of assets to this plan | 2018-12-31 | $206,302,742 |
| Total transfer of assets from this plan | 2018-12-31 | $175,028,214 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $537,851 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $25,638,819 |
| Total income from all sources (including contributions) | 2018-12-31 | $-72,566,906 |
| Total loss/gain on sale of assets | 2018-12-31 | $-1,542,908 |
| Total of all expenses incurred | 2018-12-31 | $5,615 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $0 |
| Value of total assets at end of year | 2018-12-31 | $594,719,967 |
| Value of total assets at beginning of year | 2018-12-31 | $661,118,928 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $5,615 |
| Total interest from all sources | 2018-12-31 | $484 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $5,615 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $553,061 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $25,637,951 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $537,851 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $25,638,819 |
| Administrative expenses (other) incurred | 2018-12-31 | $-5,857 |
| Value of net income/loss | 2018-12-31 | $-72,572,521 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $594,182,116 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $635,480,109 |
| Investment advisory and management fees | 2018-12-31 | $5,857 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $594,141,906 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $635,455,977 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $484 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $81,108,981 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $174,454,267 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $175,997,175 |
| 2017 : RUSSELL 2000 INDEX FUND B 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $50,382,961 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $50,382,961 |
| Total transfer of assets to this plan | 2017-12-31 | $110,368,654 |
| Total transfer of assets from this plan | 2017-12-31 | $186,854,314 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $25,638,819 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $20,687,483 |
| Total income from all sources (including contributions) | 2017-12-31 | $90,388,188 |
| Total loss/gain on sale of assets | 2017-12-31 | $-20,298,900 |
| Total of all expenses incurred | 2017-12-31 | $11,951 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $0 |
| Value of total assets at end of year | 2017-12-31 | $661,118,928 |
| Value of total assets at beginning of year | 2017-12-31 | $642,277,015 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $11,951 |
| Total interest from all sources | 2017-12-31 | $292 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $5,593 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $25,637,951 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $20,687,026 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $25,638,819 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $20,687,483 |
| Value of net income/loss | 2017-12-31 | $90,376,237 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $635,480,109 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $621,589,532 |
| Investment advisory and management fees | 2017-12-31 | $6,358 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $635,455,977 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $621,564,989 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $292 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $60,303,835 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $175,547,878 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $195,846,778 |
| 2016 : RUSSELL 2000 INDEX FUND B 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $132,712,618 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $132,712,618 |
| Total transfer of assets to this plan | 2016-12-31 | $61,886,105 |
| Total transfer of assets from this plan | 2016-12-31 | $185,078,660 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $20,687,483 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $161,166 |
| Total income from all sources (including contributions) | 2016-12-31 | $122,736,663 |
| Total loss/gain on sale of assets | 2016-12-31 | $-30,891,778 |
| Total of all expenses incurred | 2016-12-31 | $11,194 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $0 |
| 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 | $642,277,015 |
| Value of total assets at beginning of year | 2016-12-31 | $622,217,784 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $11,194 |
| Total interest from all sources | 2016-12-31 | $159 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $5,700 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $20,687,026 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $154,571 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $20,687,483 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $161,166 |
| Administrative expenses (other) incurred | 2016-12-31 | $-314 |
| Value of net income/loss | 2016-12-31 | $122,725,469 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $621,589,532 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $622,056,618 |
| Investment advisory and management fees | 2016-12-31 | $5,808 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $621,564,989 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $622,038,214 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $24,999 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $24,999 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $159 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $20,915,664 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $175,396,551 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $206,288,329 |
| 2015 : RUSSELL 2000 INDEX FUND B 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-130,424,878 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-130,424,878 |
| Total transfer of assets to this plan | 2015-12-31 | $266,305,829 |
| Total transfer of assets from this plan | 2015-12-31 | $424,796,256 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $161,166 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $4,375,303 |
| Total income from all sources (including contributions) | 2015-12-31 | $-26,715,490 |
| Total loss/gain on sale of assets | 2015-12-31 | $-11,997,691 |
| Total of all expenses incurred | 2015-12-31 | $11,142 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $0 |
| Value of total assets at end of year | 2015-12-31 | $622,217,784 |
| Value of total assets at beginning of year | 2015-12-31 | $811,648,980 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $11,142 |
| Total interest from all sources | 2015-12-31 | $69 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $5,700 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $154,571 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $4,369,219 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $161,166 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $4,375,303 |
| Administrative expenses (other) incurred | 2015-12-31 | $-247 |
| Value of net income/loss | 2015-12-31 | $-26,726,632 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $622,056,618 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $807,273,677 |
| Investment advisory and management fees | 2015-12-31 | $5,689 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $622,038,214 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $807,254,712 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $24,999 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $25,049 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $25,049 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $69 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $115,707,010 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $422,707,595 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $434,705,286 |
| 2014 : RUSSELL 2000 INDEX FUND B 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $-238,750,353 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $-238,750,353 |
| Total transfer of assets to this plan | 2014-12-31 | $110,393,034 |
| Total transfer of assets from this plan | 2014-12-31 | $620,168,382 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $4,375,303 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $573,554 |
| Total income from all sources (including contributions) | 2014-12-31 | $30,118,190 |
| Total loss/gain on sale of assets | 2014-12-31 | $36,318,394 |
| Total of all expenses incurred | 2014-12-31 | $11,437 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $0 |
| Value of total assets at end of year | 2014-12-31 | $811,648,980 |
| Value of total assets at beginning of year | 2014-12-31 | $1,287,515,826 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $11,437 |
| Total interest from all sources | 2014-12-31 | $88 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $5,650 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $4,369,219 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $564,772 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $4,375,303 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $573,554 |
| Value of net income/loss | 2014-12-31 | $30,106,753 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $807,273,677 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $1,286,942,272 |
| Investment advisory and management fees | 2014-12-31 | $5,787 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $807,254,712 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $1,286,901,073 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $25,049 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $49,981 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $49,981 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $88 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $232,550,061 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $623,143,969 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $586,825,575 |
| 2013 : RUSSELL 2000 INDEX FUND B 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $226,620,689 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $226,620,689 |
| Total transfer of assets to this plan | 2013-12-31 | $133,432,212 |
| Total transfer of assets from this plan | 2013-12-31 | $99,923,279 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $573,554 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $75,287 |
| Total income from all sources (including contributions) | 2013-12-31 | $354,262,950 |
| Total loss/gain on sale of assets | 2013-12-31 | $17,684,274 |
| Total of all expenses incurred | 2013-12-31 | $11,627 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $0 |
| Value of total assets at end of year | 2013-12-31 | $1,287,515,826 |
| Value of total assets at beginning of year | 2013-12-31 | $899,257,303 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $11,627 |
| Total interest from all sources | 2013-12-31 | $73 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $5,900 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $564,772 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $68,011 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $573,554 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $75,287 |
| Value of net income/loss | 2013-12-31 | $354,251,323 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $1,286,942,272 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $899,182,016 |
| Investment advisory and management fees | 2013-12-31 | $5,727 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $1,286,901,073 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $899,164,292 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $49,981 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $25,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $25,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $73 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $109,957,914 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $109,278,358 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $91,594,084 |
| 2012 : RUSSELL 2000 INDEX FUND B 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $57,263,237 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $57,263,237 |
| Total transfer of assets to this plan | 2012-12-31 | $306,395,471 |
| Total transfer of assets from this plan | 2012-12-31 | $69,818,282 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $75,287 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $534,313 |
| Total income from all sources (including contributions) | 2012-12-31 | $105,575,859 |
| Total loss/gain on sale of assets | 2012-12-31 | $3,867,458 |
| Total of all expenses incurred | 2012-12-31 | $11,640 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $0 |
| Value of total assets at end of year | 2012-12-31 | $899,257,303 |
| Value of total assets at beginning of year | 2012-12-31 | $557,574,921 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $11,640 |
| Total interest from all sources | 2012-12-31 | $39 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $5,800 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $68,011 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $526,340 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $75,287 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $534,313 |
| Value of net income/loss | 2012-12-31 | $105,564,219 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $899,182,016 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $557,040,608 |
| Investment advisory and management fees | 2012-12-31 | $5,840 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $899,164,292 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $557,046,948 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $25,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $1,633 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $1,633 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $39 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $44,445,125 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $67,051,062 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $63,183,604 |
| 2011 : RUSSELL 2000 INDEX FUND B 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $-132,936,876 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $-132,936,876 |
| Total transfer of assets to this plan | 2011-12-31 | $97,532,500 |
| Total transfer of assets from this plan | 2011-12-31 | $89,176,915 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $534,313 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $190,705,113 |
| Total income from all sources (including contributions) | 2011-12-31 | $-18,946,824 |
| Total loss/gain on sale of assets | 2011-12-31 | $8,803,351 |
| Total of all expenses incurred | 2011-12-31 | $12,539 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $0 |
| Value of total assets at end of year | 2011-12-31 | $557,574,921 |
| Value of total assets at beginning of year | 2011-12-31 | $758,349,499 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $12,539 |
| Total interest from all sources | 2011-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $6,810 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $526,340 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $190,699,403 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $534,313 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $190,705,113 |
| Value of net income/loss | 2011-12-31 | $-18,959,363 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $557,040,608 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $567,644,386 |
| Investment advisory and management fees | 2011-12-31 | $5,729 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $557,046,948 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $567,648,868 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $1,633 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $1,228 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $1,228 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $105,186,701 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $77,326,291 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $68,522,940 |
| 2010 : RUSSELL 2000 INDEX FUND B 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $46,599,484 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $46,599,484 |
| Total transfer of assets to this plan | 2010-12-31 | $231,879,413 |
| Total transfer of assets from this plan | 2010-12-31 | $304,495,400 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $190,705,113 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $1,552,610 |
| Total income from all sources (including contributions) | 2010-12-31 | $149,950,628 |
| Total loss/gain on sale of assets | 2010-12-31 | $63,797,740 |
| Total of all expenses incurred | 2010-12-31 | $10,818 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 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 | $758,349,499 |
| Value of total assets at beginning of year | 2010-12-31 | $491,873,173 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $10,818 |
| Total interest from all sources | 2010-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $6,810 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $190,699,403 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $1,555,954 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $190,705,113 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $1,552,610 |
| Administrative expenses (other) incurred | 2010-12-31 | $-1,844 |
| Value of net income/loss | 2010-12-31 | $149,939,810 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $567,644,386 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $490,320,563 |
| Investment advisory and management fees | 2010-12-31 | $5,852 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $567,648,868 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $490,315,864 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $1,228 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $1,355 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $1,355 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $39,553,404 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $322,427,450 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $258,629,710 |
