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v3.3.1.900

Investments Investments (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($) position | Dec. 31, 2014 USD ($) position | Dec. 31, 2013 USD ($)
Investment Narrative [Line Items] |  |  |  |
Available-for-sale Securities, Amortized Cost Basis |  | $ 17,575,507 | $ 14,010,604 |
Available-for-sale Securities |  | $ 17,708,156 | $ 14,885,583 |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | position |  | 2,080 | 932 |
Proceeds From Sale Of Available For Sale Securities Sold At Loss |  | $ 1,523,600 | $ 1,016,500 | $ 1,104,000
Available-for-sale Securities, Gross Realized Losses |  | 71,893 | 31,295 | $ 60,575
Securities Sold under Agreements to Repurchase |  | 0 | 92,446 |
Securities for Reverse Repurchase Agreements |  | $ 443,435 | $ 298,466 |
Mortgage Loan Percent Of Invested Assets |  | 7.50% | 7.40% |
Policy Loans Percent Of Invested Assets |  | 3.50% | 3.50% |
Funds Withheld At Interest Percent Of Invested Assets |  | 14.00% | 16.10% |
Percentage Of Total Gross Unrealized Losses |  | 100.00% | 100.00% |
Funds withheld at interest |  | $ 5,880,203 | $ 5,922,561 |
Funds Held Under Reinsurance Agreements Asset Specific Client |  | $ 4,100,000 |  |
Other Invested Assets Percent Of Invested Assets |  | 3.10% | 3.30% |
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total |  | 100.00% | 100.00% |
Assets Sold under Agreements to Repurchase, Repurchase Liability |  | $ 101,400 |  |
Securities Sold under Agreements to Repurchase, Fair Value of Collateral |  | 0 | $ 107,158 |
Non-Income Producing Securities [Member] |  |  |  |
Investment Narrative [Line Items] |  |  |  |
Available-for-sale Securities, Amortized Cost Basis |  | 116,000 | 42,700 |
Available-for-sale Securities |  | 123,000 | 52,800 |
Canadian Province Of Quebec Securities [Member] |  |  |  |
Investment Narrative [Line Items] |  |  |  |
Available-for-sale Securities, Amortized Cost Basis |  | 943,484 | 1,006,315 |
Available-for-sale Securities |  | 1,525,903 | 1,599,673 |
Reported Value Measurement [Member] |  |  |  |
Investment Narrative [Line Items] |  |  |  |
Securities Borrowed |  | 259,540 | 201,050 |
Funds withheld at interest | [1] | 5,956,380 | 5,897,202 |
Mortgage Receivable [Member] |  |  |  |
Investment Narrative [Line Items] |  |  |  |
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due |  | $ 0 | $ 0 |
CALIFORNIA |  |  |  |
Investment Narrative [Line Items] |  |  |  |
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total |  | 22.30% | 18.70% |
[1] | Carrying values presented herein differ from those presented in the consolidated balance sheets because certain items within the respective financial statement caption are embedded derivatives and are measured at fair value on a recurring basis.

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- Definition Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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