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FAIR VALUE MEASUREMENTS (DETAILS 2) (USD $) In Thousands, unless otherwise specified |  |  |  | 6 Months Ended |  | 6 Months Ended
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Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Level 3 [Member] Other Investments - CLO-Equities [Member] | Jun. 30, 2014 Discounted cash flow [Member] Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Discounted cash flow [Member] Level 3 [Member] Other Investments - CLO-Equities [Member] | Jun. 30, 2014 Broker-dealer quote [Member] Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Net asset value [Member] Level 3 [Member] Other Investments - CLO-Equities [Member] | Jun. 30, 2014 Simulation model [Member] Level 3 [Member] Weather Related Derivative [Member] | Jun. 30, 2014 Minimum [Member] Discounted cash flow [Member] Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Minimum [Member] Discounted cash flow [Member] Level 3 [Member] Other Investments - CLO-Equities [Member] | Jun. 30, 2014 Minimum [Member] Simulation model [Member] Level 3 [Member] Weather Related Derivative [Member] | Jun. 30, 2014 Maximum [Member] Discounted cash flow [Member] Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Maximum [Member] Discounted cash flow [Member] Level 3 [Member] Other Investments - CLO-Equities [Member] | Jun. 30, 2014 Maximum [Member] Simulation model [Member] Level 3 [Member] Weather Related Derivative [Member] | Jun. 30, 2014 Weighted Average [Member] Discounted cash flow [Member] Level 3 [Member] ABS - CLO Debt [Member] | Jun. 30, 2014 Weighted Average [Member] Discounted cash flow [Member] Level 3 [Member] Other Investments - CLO-Equities [Member]
Fair Value Inputs Assets Quantitative Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed maturities | $ 12,598,897 | $ 11,986,327 | $ 30,883 |  | $ 30,091 |  | $ 792 |  |  |  |  |  |  |  |  |  |
Other investments | 1,044,492 | 1,045,810 |  | 91,106 |  | 37,719 |  | 53,387 |  |  |  |  |  |  |  |  |
Net derivative assets |  |  |  |  |  |  |  |  | $ (750) |  |  |  |  |  |  |  |
Credit spread |  |  |  |  |  |  |  |  |  | 3.00% |  |  | 4.70% |  |  | 3.50% |
Illiquidity discount |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  | 5.00% |
Default rates |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  | 5.00% |  |  | 4.30%
Loss severity rate |  |  |  |  |  | 53.50% |  |  |  |  |  |  |  |  |  |  | 53.50%
Collateral spreads |  |  |  |  |  |  |  |  |  |  | 2.60% |  |  | 3.50% |  |  | 3.30%
Estimated maturity dates (years) |  |  |  |  |  |  |  |  |  |  | 3 years 183 days |  |  | 4 years 183 days |  |  | 4 years 0 days
Weather curve |  |  |  |  |  |  |  |  |  |  |  | 21 |  |  | 106 |  |
Weather standard deviation |  |  |  |  |  |  |  |  |  |  |  | 12 |  |  | 58 |  |

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- Definition The difference between implied yields and risk-free rates for similar securities. + References No definition available. + Details
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- Definition Fair value of investments in certain entities that calculate net asset value per share, including, but not limited to, by unit, membership interest, or other ownership interest. Investments include, but are not limited to, investments in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=SL6742756-110258 + Details
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- Definition Adjustment to the discount rate used to measure fair value for lack of ability to convert business interests into cash quickly. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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