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Fair Value Disclosures (Details 3) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Funds Withheld At Interest Embedded Derivatives [Member] |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | $ (370,884) | $ (183,685) | $ (361,456) | $ (274,220)
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | (4,453) | 10,525 | (13,881) | 101,060
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 0 | 0 | 0 | 0
Purchases | 0 | 0 | 0 | 0
Sales | 0 | 0 | 0 | 0
Settlements | 0 | 0 | 0 | 0
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, End of period | (375,337) | (173,160) | (375,337) | (173,160)
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | (4,452) | 10,525 | (13,881) | 101,060
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Nonredeemable Preferred Stock Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period |  | 420 |  | 420
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses |  | 0 |  | 0
Investment related gains (losses), net |  | 0 |  | 0
Claims and other policy benefits |  | 0 |  | 0
Interest credited |  | 0 |  | 0
Policy acquisition costs and other insurance expenses |  | 0 |  | 0
Included in other comprehensive income |  | 0 |  | 0
Purchases |  | 0 |  | 0
Sales |  | (420) |  | (420)
Settlements |  | 0 |  | 0
Transfers into Level 3 |  | 0 |  | 0
Transfers out of Level 3 |  | 0 |  | 0
Balance, End of period |  | 0 |  | 0
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses |  | 0 |  | 0
Investment related gains (losses), net |  | 0 |  | 0
Claims & other policy benefits |  | 0 |  | 0
Interest credited |  | 0 |  | 0
Policy acquisition costs and other insurance expenses |  | 0 |  | 0
Equity Securities Other Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 11,827 | 14,134 | 11,489 | 16,416
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | 1,098 | 3,504 | 1,098 | 3,504
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 505 | (2,704) | 843 | (4,987)
Purchases | 108 | 0 | 108 | 0
Sales | (3,788) | (3,933) | (3,788) | (3,932)
Settlements | 0 | 0 | 0 | 0
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | (6,523) | 0 | (6,523) | 0
Balance, End of period | 3,227 | 11,001 | 3,227 | 11,001
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | (183) | 0 | (183) | 0
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Reinsurance Ceded Receivable Embedded Derivatives [Member] |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 3,514 | 82,482 | 4,945 | 75,431
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | 0 | 0 | 0 | 0
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 1,003 | 4,473 | (325) | 12,312
Included in other comprehensive income | 0 | 0 | 0 | 0
Purchases | 0 | 1,831 | 0 | 4,264
Sales | 0 | 0 | 0 | 0
Settlements | (101) | (2,757) | (204) | (5,978)
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, End of period | 4,416 | 86,029 | 4,416 | 86,029
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | 0 | 0 | 0 | 0
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 1,143 | 10,645 | (46) | 18,485
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | (903,282) | (739,017) | (1,028,241) | (721,485)
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | (74,929) | (25,860) | 71,446 | 6,794
Claims and other policy benefits | (1,721) | (603) | 557 | 317
Interest credited | 27,825 | (36,267) | 6,632 | (86,116)
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 0 | 0 | 0 | 0
Purchases | (16,107) | (21,302) | (39,697) | (41,220)
Sales | 0 | 0 | 0 | 0
Settlements | 29,287 | 18,878 | 50,376 | 37,539
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, End of period | (938,927) | (804,171) | (938,927) | (804,171)
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 0 | 0 | 0 | 0
Investment related gains (losses), net | (76,737) | (25,861) | 67,887 | 6,794
Claims & other policy benefits | (1,959) | (1,370) | 79 | (16)
Interest credited | (1,288) | (55,145) | (43,395) | (123,655)
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | Corporate Debt Securities Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 977,671 | 940,470 | 974,169 | 872,179
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 77 | 75 | 107 | 162
Investment related gains (losses), net | (696) | 321 | (1,280) | 741
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 10,341 | 9,228 | 9,659 | 9,450
Purchases | 68,275 | 97,606 | 89,435 | 197,807
Sales | (17,876) | (19,563) | (27,285) | (21,071)
Settlements | (32,497) | (25,050) | (53,371) | (75,730)
Transfers into Level 3 | 0 | 26,268 | 17,445 | 60,679
Transfers out of Level 3 | (11,281) | (51,795) | (14,865) | (66,657)
Balance, End of period | 994,014 | 977,560 | 994,014 | 977,560
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 84 | 56 | 114 | 130
Investment related gains (losses), net | (380) | 0 | (1,106) | (514)
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | Residential Mortgage Backed Securities Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 54,435 | 138,568 | 81,655 | 183,291
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 188 | 233 | 298 | 493
Investment related gains (losses), net | (315) | (45) | (36) | (401)
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | (172) | (2,910) | 1,408 | 4,484
Purchases | 337 | 5,329 | 582 | 5,782
Sales | (8,219) | (6,635) | (16,224) | (20,701)
Settlements | (1,902) | (4,205) | (3,702) | (12,365)
Transfers into Level 3 | 7,176 | 0 | 7,176 | 5,001
Transfers out of Level 3 | (1,937) | (26,905) | (21,566) | (62,154)
Balance, End of period | 49,591 | 103,430 | 49,591 | 103,430
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 148 | 216 | 255 | 474
Investment related gains (losses), net | (161) | (44) | (269) | (44)
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | Asset Backed Securities Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 146,362 | 202,246 | 193,492 | 228,558
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 195 | 322 | 444 | 904
Investment related gains (losses), net | 164 | (3,671) | (506) | (2,827)
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 1,782 | 3,182 | 8,477 | 7,413
Purchases | 2,012 | 25,007 | 2,012 | 29,880
Sales | (7,902) | (3,998) | (7,902) | (22,298)
Settlements | (3,238) | (8,693) | (7,103) | (16,841)
Transfers into Level 3 | 0 | 10,175 | 1,080 | 21,501
Transfers out of Level 3 | (11,017) | (35,797) | (61,636) | (57,517)
Balance, End of period | 128,358 | 188,773 | 128,358 | 188,773
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 151 | 331 | 400 | 838
Investment related gains (losses), net | 0 | (2,998) | (607) | (3,551)
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | Commercial Mortgage Backed Securities Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 118,678 | 203,394 | 115,976 | 147,556
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 545 | 611 | 1,133 | 1,169
Investment related gains (losses), net | 393 | (2,242) | (11,682) | (2,732)
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | (2,273) | (5,825) | 11,248 | 27,316
Purchases | 0 | 5,069 | 0 | 7,683
Sales | (1,552) | 0 | (1,552) | 0
Settlements | (58) | (3,080) | (58) | (3,410)
Transfers into Level 3 | 0 | 11,665 | 10,846 | 66,854
Transfers out of Level 3 | 0 | (58,827) | (10,178) | (93,671)
Balance, End of period | 115,733 | 150,765 | 115,733 | 150,765
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 545 | 601 | 1,133 | 1,155
Investment related gains (losses), net | 0 | (2,254) | (12,075) | (2,743)
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | US States And Political Subdivisions Member |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period | 5,239 | 45,081 | 10,373 | 6,983
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses | 9 | 2 | 4 | 370
Investment related gains (losses), net | (4) | (3) | (8) | (8)
Claims and other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Included in other comprehensive income | 827 | 939 | 1,233 | 3,615
Purchases | 0 | 0 | 0 | 871
Sales | 0 | 0 | 0 | 0
Settlements | (23) | (22) | (46) | (43)
Transfers into Level 3 | 8,438 | 14,260 | 8,438 | 48,469
Transfers out of Level 3 | 0 | (37,325) | (5,508) | (37,325)
Balance, End of period | 14,486 | 22,932 | 14,486 | 22,932
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses | 9 | 2 | 4 | 370
Investment related gains (losses), net | 0 | 0 | 0 | 0
Claims & other policy benefits | 0 | 0 | 0 | 0
Interest credited | 0 | 0 | 0 | 0
Policy acquisition costs and other insurance expenses | 0 | 0 | 0 | 0
Availableforsale Securities Member | Other Foreign Government, Supranational And Foreign Government-Sponsored Enterprises |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] |  |  |  |
Balance, Beginning of period |  | 6,495 |  | 6,736
Total gains or (losses) (realized/unrealized) |  |  |  |
Investment income, net of related expenses |  | 0 |  | 1
Investment related gains (losses), net |  | 0 |  | 0
Claims and other policy benefits |  | 0 |  | 0
Interest credited |  | 0 |  | 0
Policy acquisition costs and other insurance expenses |  | 0 |  | 0
Included in other comprehensive income |  | 110 |  | 8
Purchases |  | 0 |  | 0
Sales |  | 0 |  | (161)
Settlements |  | 0 |  | 0
Transfers into Level 3 |  | 0 |  | 21
Transfers out of Level 3 |  | (2,531) |  | (2,531)
Balance, End of period |  | 4,074 |  | 4,074
Unrealized Gains And Losses Recorded In Earnings For The Period Relating To Those Level 3 Assets And Liabilities That Were Still Held At The End Of The Period |  |  |  |
Investment income, net of related expenses |  | 0 |  | (36)
Investment related gains (losses), net |  | 0 |  | 0
Claims & other policy benefits |  | 0 |  | 0
Interest credited |  | 0 |  | 0
Policy acquisition costs and other insurance expenses |  | $ 0 |  | $ 0

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- Definition Gains-losses for the period (realized and unrealized) arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (level 3), which are included in earnings and reported on the income statement line called investment income, net of related expenses. + References No definition available. + Details
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- Definition Gains-losses for the period (unrealized) arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (level 3) and still held at the end of the period, which are included in earnings and reported on the income statement line called policy acquisition costs and other insurance expenses. + References No definition available. + Details
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- Definition Gains-losses for the period (unrealized) arising from assets and liabilities measured at fair value on a recurring basis using unobservable inputs (level 3) and still held at the end of the period, which are included in earnings and reported on the income statement line called investment related gains (losses), net. + References No definition available. + Details
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