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INVESTMENTS (DETAILS) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | $ 12,428,133 | $ 11,987,146
Gross Unrealized Gains (fixed maturities) | 231,351 | 179,218
Gross Unrealized Losses (fixed maturities) | (60,587) | (180,037)
Fair Value (fixed maturities) | 12,598,897 | 11,986,327
Non-credit OTTI in AOCI | (879) | (868)
Cost | 614,174 | 566,219
Gross Unrealized Gains (equities) | 133,726 | 141,951
Gross Unrealized Losses (equities) | (3,140) | (6,183)
Fair Value (equities) | 744,760 | 701,987
US Government and Agency [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,607,568 | 1,421,245
Gross Unrealized Gains (fixed maturities) | 4,761 | 1,405
Gross Unrealized Losses (fixed maturities) | (14,009) | (33,952)
Fair Value (fixed maturities) | 1,598,320 | 1,388,698
Non-credit OTTI in AOCI | 0 | 0
Non-US Government [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,238,471 | 1,208,384
Gross Unrealized Gains (fixed maturities) | 30,486 | 17,990
Gross Unrealized Losses (fixed maturities) | (21,290) | (49,992)
Fair Value (fixed maturities) | 1,247,667 | 1,176,382
Non-credit OTTI in AOCI | 0 | 0
Corporate Debt [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 4,177,454 | 3,533,585
Gross Unrealized Gains (fixed maturities) | 91,862 | 84,881
Gross Unrealized Losses (fixed maturities) | (5,342) | (10,228)
Fair Value (fixed maturities) | 4,263,974 | 3,608,238
Non-credit OTTI in AOCI | 0 | 0
Agency RMBS [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 2,076,932 | 2,485,139
Gross Unrealized Gains (fixed maturities) | 37,725 | 21,979
Gross Unrealized Losses (fixed maturities) | (9,078) | (58,291)
Fair Value (fixed maturities) | 2,105,579 | 2,448,827
Non-credit OTTI in AOCI | 0 | 0
CMBS [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 923,294 | 790,095
Gross Unrealized Gains (fixed maturities) | 17,187 | 11,285
Gross Unrealized Losses (fixed maturities) | (787) | (3,966)
Fair Value (fixed maturities) | 939,694 | 797,414
Non-credit OTTI in AOCI | 0 | 0
Non-Agency RMBS [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 80,243 | 65,590
Gross Unrealized Gains (fixed maturities) | 5,069 | 2,375
Gross Unrealized Losses (fixed maturities) | (366) | (398)
Fair Value (fixed maturities) | 84,946 | 67,567
Non-credit OTTI in AOCI | (879) | (868)
ABS [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,309,555 | 955,274
Gross Unrealized Gains (fixed maturities) | 5,162 | 6,871
Gross Unrealized Losses (fixed maturities) | (7,792) | (8,694)
Fair Value (fixed maturities) | 1,306,925 | 953,451
Non-credit OTTI in AOCI | 0 | 0
Municipals [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Amortized Cost | 1,014,616 | 1,527,834
Gross Unrealized Gains (fixed maturities) | 39,099 | 32,432
Gross Unrealized Losses (fixed maturities) | (1,923) | (14,516)
Fair Value (fixed maturities) | 1,051,792 | 1,545,750
Non-credit OTTI in AOCI | 0 | 0
Common Stock [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Cost | 307,392 | 345,759
Gross Unrealized Gains (equities) | 80,750 | 98,742
Gross Unrealized Losses (equities) | (3,140) | (6,183)
Fair Value (equities) | 385,002 | 438,318
Exchange-Traded Funds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Cost | 193,582 | 106,762
Gross Unrealized Gains (equities) | 41,790 | 32,085
Gross Unrealized Losses (equities) | 0 | 0
Fair Value (equities) | 235,372 | 138,847
Non-U.S. Bond Mutual Funds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Cost | 113,200 | 113,698
Gross Unrealized Gains (equities) | 11,186 | 11,124
Gross Unrealized Losses (equities) | 0 | 0
Fair Value (equities) | $ 124,386 | $ 124,822

X
- Definition Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as available-for-sale that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. + References No definition available. + Details
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- Definition Amount of accumulated pre-tax unrealized gain before deducting pre-tax unrealized loss on investments in available-for-sale debt securities impacting investments. + References No definition available. + Details
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