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SCHEDULE I - SUMMARY OF INVESTMENTS - OTHER THAN INVESTMENTS IN RELATED PARTIES (Details) $ in Thousands | Dec. 31, 2017 USD ($)
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Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | $ 14,333,672
Amount shown on the Balance Sheet | 14,784,210
U.S. government and agency |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 1,727,643
Fair Value | 1,712,469
Amount shown on the Balance Sheet | 1,712,469
Non-U.S. government |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 798,582
Fair Value | 806,299
Amount shown on the Balance Sheet | 806,299
Corporate debt |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 5,265,795
Fair Value | 5,297,866
Amount shown on the Balance Sheet | 5,297,866
Agency RMBS |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 2,414,720
Fair Value | 2,395,152
Amount shown on the Balance Sheet | 2,395,152
CMBS |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 776,715
Fair Value | 777,728
Amount shown on the Balance Sheet | 777,728
Non-Agency RMBS |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 45,713
Fair Value | 46,831
Amount shown on the Balance Sheet | 46,831
ABS |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 1,432,884
Fair Value | 1,436,281
Amount shown on the Balance Sheet | 1,436,281
Municipals |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 149,167
Fair Value | 149,380
Amount shown on the Balance Sheet | 149,380
Fixed maturities |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Amortized Cost | 12,611,219
Fair Value | 12,622,006
Amount shown on the Balance Sheet | 12,622,006
Mortgage loans |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | 325,062
Amount shown on the Balance Sheet | 325,062
Short-term investments |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | 83,661
Amount shown on the Balance Sheet | 83,661
Equity securities |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | 635,511
Amount shown on the Balance Sheet | 635,511
Other Investments [Member] |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | 667,432
Amount shown on the Balance Sheet | 1,009,373
Equity Method Investments [Member] |
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items] |
Fair Value | 0
Amount shown on the Balance Sheet | $ 108,597

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- Definition This element represents the carrying (reported) amount of the entity's investments as of the balance sheet date. This amount may represent the individual investment's or group of similar investments' original cost, fair value, or such other amount at which the investment is shown in the entity's balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010 + Details
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- Definition This item represents the original cost of the entity's investments including investments in equity securities and, as to fixed maturities, original cost reduced by repayments and adjusted for amortization of premiums or accrual of discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010 + Details
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- Definition This item represents the reported amount of the entity's investments measured at fair value. Fair value is the price that would be received to sell an investment in an orderly transaction between market participants at the balance sheet [measurement] date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 7 -Subparagraph (SX 210.12-15) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010 + Details
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