|
FAIR VALUE MEASUREMENTS (TABLES)
|
6 Months Ended |
|
Jun. 30, 2013
|
| Fair Value Disclosures [Abstract] |
|
| FINANCIAL INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | Significant Other Observable Inputs (Level 2) | | Significant Unobservable Inputs (Level 3) | | Total Fair Value | | | | | | | | | | | | | At June 30, 2013 | | | | | | | | | | Assets | | | | | | | | | | Fixed maturities | | | | | | | | | | U.S. government and agency | $ | 1,168,380 |
| | $ | 170,434 |
| | $ | — |
| | $ | 1,338,814 |
| | | Non-U.S. government | — |
| | 1,176,949 |
| | — |
| | 1,176,949 |
| | | Corporate debt | — |
| | 3,479,916 |
| | — |
| | 3,479,916 |
| | | Agency RMBS | — |
| | 2,333,624 |
| | — |
| | 2,333,624 |
| | | CMBS | — |
| | 762,865 |
| | 11,785 |
| | 774,650 |
| | | Non-Agency RMBS | — |
| | 88,866 |
| | — |
| | 88,866 |
| | | ABS | — |
| | 857,556 |
| | 54,125 |
| | 911,681 |
| | | Municipals | — |
| | 1,540,412 |
| | — |
| | 1,540,412 |
| | | | 1,168,380 |
| | 10,410,622 |
| | 65,910 |
| | 11,644,912 |
| | | Equity securities | | | | | | | | | | Common stocks | 390,180 |
| | — |
| | — |
| | 390,180 |
| | | Exchange-traded funds | 119,236 |
| | — |
| | — |
| | 119,236 |
| | | Non-U.S. bond mutual funds | — |
| | 109,379 |
| | — |
| | 109,379 |
| | | | 509,416 |
| | 109,379 |
| | — |
| | 618,795 |
| | | Other investments | | | | | | | | | | Hedge funds | — |
| | 460,819 |
| | 444,220 |
| | 905,039 |
| | | Direct lending funds | — |
| | — |
| | 4,232 |
| | 4,232 |
| | | CLO - Equities | — |
| | — |
| | 53,044 |
| | 53,044 |
| | | | — |
| | 460,819 |
| | 501,496 |
| | 962,315 |
| | | Short-term investments | — |
| | 45,904 |
| | — |
| | 45,904 |
| | | Derivative instruments (see Note 5) | — |
| | 7,792 |
| | — |
| | 7,792 |
| | | Total | $ | 1,677,796 |
| | $ | 11,034,516 |
| | $ | 567,406 |
| | $ | 13,279,718 |
| | | Liabilities | | | | | | | | | | Derivative instruments (see Note 5) | $ | — |
| | $ | 9,722 |
| | $ | — |
| | $ | 9,722 |
| | | Cash settled awards (see Note 7) | — |
| | 4,106 |
| | — |
| | 4,106 |
| | | Total | $ | — |
| | $ | 13,828 |
| | $ | — |
| | $ | 13,828 |
| | | | | | | | | | | | | At December 31, 2012 | | | | | | | | | | Assets | | | | | | | | | | Fixed maturities | | | | | | | | | | U.S. government and agency | $ | 1,094,220 |
| | $ | 328,665 |
| | $ | — |
| | $ | 1,422,885 |
| | | Non-U.S. government | — |
| | 1,104,576 |
| | — |
| | 1,104,576 |
| | | Corporate debt | — |
| | 3,874,832 |
| | 1,550 |
| | 3,876,382 |
| | | Agency RMBS | — |
| | 2,659,908 |
| | — |
| | 2,659,908 |
| | | CMBS | — |
| | 835,788 |
| | 4,296 |
| | 840,084 |
| | | Non-Agency RMBS | — |
| | 94,089 |
| | 1,110 |
| | 95,199 |
| | | ABS | — |
| | 579,231 |
| | 63,975 |
| | 643,206 |
| | | Municipals | — |
| | 1,285,809 |
| | — |
| | 1,285,809 |
| | | | 1,094,220 |
| | 10,762,898 |
| | 70,931 |
| | 11,928,049 |
| | | Equity securities | | | | | | | | | | Common stocks | 443,398 |
| | — |
| | — |
| | 443,398 |
| | | Exchange-traded funds | 119,161 |
| | — |
| | — |
| | 119,161 |
| | | Non-U.S. bond mutual funds | — |
| | 103,989 |
| | — |
| | 103,989 |
| | | | 562,559 |
| | 103,989 |
| | — |
| | 666,548 |
| | | Other investments | | | | | | | | | | Hedge funds | — |
| | 421,006 |
| | 359,996 |
| | 781,002 |
| | | Direct lending funds | — |
| | — |
| | — |
| | — |
| | | CLO - Equities | — |
| | — |
| | 62,435 |
| | 62,435 |
| | | | — |
| | 421,006 |
| | 422,431 |
| | 843,437 |
| | | Short-term investments | — |
| | 108,860 |
| | — |
| | 108,860 |
| | | Derivative instruments (see Note 5) | — |
| | 5,838 |
| | — |
| | 5,838 |
| | | Total | $ | 1,656,779 |
| | $ | 11,402,591 |
| | $ | 493,362 |
| | $ | 13,552,732 |
| | | Liabilities | | | | | | | | | | Derivative instruments (see Note 5) | $ | — |
| | $ | 3,737 |
| | $ | — |
| | $ | 3,737 |
| | | Cash settled awards (see Note 7) | — |
| | — |
| | — |
| | — |
| | | Total | $ | — |
| | $ | 3,737 |
| | $ | — |
| | $ | 3,737 |
| | | | | | | | | | | |
|
| LEVEL 3 FAIR VALUE MEASUREMENT INPUTS [Table Text Block] |
| | | | | | | | | | | | | Fair Value | Valuation Technique | Unobservable Input | Range | Weighted Average | | | | | | | | | | | ABS - CLO Debt | $ | 53,113 |
| Discounted cash flow | Credit spreads | 3.2% - 4.9% | 3.74% | | | | | | Illiquidity discount (1) | 5.0% | 5% | | | | | | | | | | | Other investments - CLO - Equities | $ | 53,044 |
| Discounted cash flow | Default rates | 4.0% - 5.0% | 4.35% | | | | | | Loss severity rate | 53.5% | 53.5% | | | | | | Collateral spreads | 2.6% - 4.2% | 3.24% | | | | | | Estimated maturity dates | 2.0 - 5.4 years | 4.2 years | | | | | | | | | |
(1) Judgmentally determined based on limited trades of similar securities observed in the secondary markets.
|
| CHANGES IN LEVEL 3 FINANCIAL INSTRUMENTS MEASURED AT FAIR VALUE ON A RECURRING BASIS [Table Text Block] |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Opening Balance | | Transfers into Level 3 | | Transfers out of Level 3 | | Included in earnings (1) | | Included in OCI (2) | | Purchases | | Sales | | Settlements/ Distributions | | Closing Balance | | Change in unrealized investment gain/loss (3) | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, 2013 | | | | | | | | | | | | | | | | | | | Fixed maturities | | | | | | | | | | | | | | | | | | | | | | Corporate debt | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | | Non-Agency RMBS | 1,300 |
| | — |
| | (1,223 | ) | | — |
| | (77 | ) | | — |
| | — |
| | — |
| | — |
| | — |
| | | CMBS | 12,600 |
| | — |
| | — |
| | — |
| | (69 | ) | | — |
| | — |
| | (746 | ) | | 11,785 |
| | — |
| | | ABS | 266,749 |
| | — |
| | (213,212 | ) | | — |
| | 693 |
| | — |
| | — |
| | (105 | ) | | 54,125 |
| | — |
| | | | 280,649 |
| | — |
| | (214,435 | ) | | — |
| | 547 |
| | — |
| | — |
| | (851 | ) | | 65,910 |
| | — |
| | | Other investments | | | | | | | | | | | | | | | | | | | | | | Hedge funds | 414,716 |
| | 29,953 |
| | — |
| | 6,962 |
| | — |
| | — |
| | — |
| | (7,411 | ) | | 444,220 |
| | 6,962 |
| | | Direct lending funds | 2,436 |
| | — |
| | — |
| | — |
| | — |
| | 1,796 |
| | — |
| | — |
| | 4,232 |
| | — |
| | | CLO - Equities | 64,255 |
| | — |
| | — |
| | 5,072 |
| | — |
| | — |
| | — |
| | (16,283 | ) | | 53,044 |
| | 5,072 |
| | | | 481,407 |
| | 29,953 |
| | — |
| | 12,034 |
| | — |
| | 1,796 |
| | — |
| | (23,694 | ) | | 501,496 |
| | 12,034 |
| | | Total assets | $ | 762,056 |
| | $ | 29,953 |
| | $ | (214,435 | ) | | $ | 12,034 |
| | $ | 547 |
| | $ | 1,796 |
| | $ | — |
| | $ | (24,545 | ) | | $ | 567,406 |
| | $ | 12,034 |
| | | | | | | | | | | | | | | | | | | | | | |
| | | Six months ended June 30, 2013 | | | | | | | | | | | | | | | | | | | Fixed maturities | | | | | | | | | | | | | | | | | | | | | | Corporate debt | $ | 1,550 |
| | $ | — |
| | $ | — |
| | $ | 1,550 |
| | $ | — |
| | $ | — |
| | $ | (3,100 | ) | | $ | — |
| | $ | — |
| | $ | — |
| | | Non-Agency RMBS | 1,110 |
| | — |
| | (1,223 | ) | | — |
| | 135 |
| | — |
| | — |
| | (22 | ) | | — |
| | — |
| | | CMBS | 4,296 |
| | 8,382 |
| | — |
| | — |
| | (147 | ) | | — |
| | — |
| | (746 | ) | | 11,785 |
| | — |
| | | ABS | 63,975 |
| | — |
| | (213,212 | ) | | (112 | ) | | 981 |
| | 212,889 |
| | (10,190 | ) | | (206 | ) | | 54,125 |
| | — |
| | | | 70,931 |
| | 8,382 |
| | (214,435 | ) | | 1,438 |
| | 969 |
| | 212,889 |
| | (13,290 | ) | | (974 | ) | | 65,910 |
| | — |
| | | Other investments | | | | | | | | | | | | | | | | | | | | | | Hedge funds | 359,996 |
| | 29,953 |
| | — |
| | 25,490 |
| | — |
| | 50,000 |
| | — |
| | (21,219 | ) | | 444,220 |
| | 25,490 |
| | | Direct lending funds | — |
| | — |
| | — |
| | — |
| | — |
| | 4,232 |
| | — |
| | — |
| | 4,232 |
| | — |
| | | CLO - Equities | 62,435 |
| | — |
| | — |
| | 15,025 |
| | — |
| | — |
| | — |
| | (24,416 | ) | | 53,044 |
| | 15,025 |
| | | | 422,431 |
| | 29,953 |
| | — |
| | 40,515 |
| | — |
| | 54,232 |
| | — |
| | (45,635 | ) | | 501,496 |
| | 40,515 |
| | | Total assets | $ | 493,362 |
| | $ | 38,335 |
| | $ | (214,435 | ) | | $ | 41,953 |
| | $ | 969 |
| | $ | 267,121 |
| | $ | (13,290 | ) | | $ | (46,609 | ) | | $ | 567,406 |
| | $ | 40,515 |
| | | | | | | | | | | | | | | | | | | | | | | |
| | (1) | Gains and losses included in earnings on fixed maturities are included in net realized investment gains (losses). Gains and (losses) included in earnings on other investments are included in net investment income. |
| | (2) | Gains and losses included in other comprehensive income (“OCI”) on fixed maturities are included in unrealized gains (losses) arising during the period. |
| | (3) | Change in unrealized investment gain/(loss) relating to assets held at the reporting date. |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Opening Balance | | Transfers into Level 3 | | Transfers out of Level 3 | | Included in earnings (1) | | Included in OCI (2) | | Purchases | | Sales | | Settlements/ Distributions | | Closing Balance | | Change in unrealized investment gain/loss (3) | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, 2012 | | | | | | | | | | | | | | | | | | | Fixed maturities | | | | | | | | | | | | | | | | | | | | | | Corporate debt | $ | 1,550 |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | 1,550 |
| | $ | — |
| | | Non-Agency RMBS | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | CMBS | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | ABS | 50,415 |
| | — |
| | — |
| | — |
| | 164 |
| | — |
| | — |
| | (635 | ) | | 49,944 |
| | — |
| | | | 51,965 |
| | — |
| | — |
| | — |
| | 164 |
| | — |
| | — |
| | (635 | ) | | 51,494 |
| | — |
| | | Other investments | | | | | | | | | | | | | | | | | | | | | | Hedge funds | 364,786 |
| | — |
| | — |
| | (10,261 | ) | | — |
| | — |
| | — |
| | (3 | ) | | 354,522 |
| | (10,261 | ) | | | Direct lending funds | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | CLO - Equities | 60,908 |
| | — |
| | — |
| | 9,634 |
| | — |
| | — |
| | — |
| | (8,976 | ) | | 61,566 |
| | 9,634 |
| | | | 425,694 |
| | — |
| | — |
| | (627 | ) | | — |
| | — |
| | — |
| | (8,979 | ) | | 416,088 |
| | (627 | ) | | | Total assets | $ | 477,659 |
| | $ | — |
| | $ | — |
| | $ | (627 | ) | | $ | 164 |
| | $ | — |
| | $ | — |
| | $ | (9,614 | ) | | $ | 467,582 |
| | $ | (627 | ) | | | | | | | | | | | | | | | | | | | | | | |
| | | Six months ended June 30, 2012 | | | | | | | | | | | | | | | | | | | Fixed maturities | | | | | | | | | | | | | | | | | | | | | | Corporate debt | $ | 1,550 |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | $ | 1,550 |
| | $ | — |
| | | Non-Agency RMBS | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | CMBS | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | ABS | 49,328 |
| | — |
| | — |
| | — |
| | 1,427 |
| | — |
| | — |
| | (811 | ) | | 49,944 |
| | — |
| | | | 50,878 |
| | — |
| | — |
| | — |
| | 1,427 |
| | — |
| | — |
| | (811 | ) | | 51,494 |
| | — |
| | | Other investments | | | | | | | | | | | | | | | | | | | | | | Hedge funds | 346,244 |
| | — |
| | — |
| | 11,271 |
| | — |
| | — |
| | — |
| | (2,993 | ) | | 354,522 |
| | 11,271 |
| | | Direct lending funds | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| | | CLO - Equities | 66,560 |
| | — |
| | — |
| | 13,024 |
| | — |
| | — |
| | — |
| | (18,018 | ) | | 61,566 |
| | 13,024 |
| | | | 412,804 |
| | — |
| | — |
| | 24,295 |
| | — |
| | — |
| | — |
| | (21,011 | ) | | 416,088 |
| | 24,295 |
| | | Total assets | $ | 463,682 |
| | $ | — |
| | $ | — |
| | $ | 24,295 |
| | $ | 1,427 |
| | $ | — |
| | $ | — |
| | $ | (21,822 | ) | | $ | 467,582 |
| | $ | 24,295 |
| | | | | | | | | | | | | | | | | | | | | | | |
| | (1) | Gains and losses included in earnings on fixed maturities are included in net realized investment gains (losses). Gains and (losses) included in earnings on other investments are included in net investment income. |
| | (2) | Gains and losses included in other comprehensive income (“OCI”) on fixed maturities are included in unrealized gains (losses) arising during the period. |
| | (3) | Change in unrealized investment gain/(loss) relating to assets held at the reporting date. |
|