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FAIR VALUE MEASUREMENTS (Changes in Level 3 for Financial Instruments) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | $ 59,283 | $ 152,468
Transfers into Level 3 | 9,185 | 0
Transfers out of Level 3 | 0 | (21,169)
Included in net income | (767) | 386
Included in OCI | (498) | 929
Purchases | 427 | 12,250
Sales | 0 | (5,547)
Settlements/ distributions | (1,259) | (9,297)
Closing balance | 66,371 | 130,020
Change in unrealized investment gains/(losses) | (767) | 1,082
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 9,672 | 10,299
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | 10,492 | (66)
Included in OCI | 0 | 0
Purchases | 0 | 0
Sales | 0 | 0
Settlements/ distributions | 0 | 0
Closing balance | 20,164 | 10,233
Change in unrealized investment gains/(losses) | 10,492 | (66)
Other liabilities | Derivative instruments |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 9,672 | 10,299
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | 10,492 | (66)
Included in OCI | 0 | 0
Purchases | 0 | 0
Sales | 0 | 0
Settlements/ distributions | 0 | 0
Closing balance | 20,164 | 10,233
Change in unrealized investment gains/(losses) | 10,492 | (66)
Fixed maturities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 8,021 | 86,679
Transfers into Level 3 | 9,185 | 0
Transfers out of Level 3 | 0 | (21,169)
Included in net income | 0 | (696)
Included in OCI | (498) | 929
Purchases | 0 | 9,750
Sales | 0 | (5,547)
Settlements/ distributions | (571) | (5,633)
Closing balance | 16,137 | 64,313
Change in unrealized investment gains/(losses) | 0 | 0
Fixed maturities | Corporate debt |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 2,297 | 49,012
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | 0 | (696)
Included in OCI | (52) | 624
Purchases | 0 | 0
Sales | 0 | (5,547)
Settlements/ distributions | 0 | (2,268)
Closing balance | 2,245 | 41,125
Change in unrealized investment gains/(losses) | 0 | 0
Fixed maturities | Non-agency RMBS |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 0 | 0
Transfers into Level 3 | 9,185 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | 0 | 0
Included in OCI | 0 | 0
Purchases | 0 | 0
Sales | 0 | 0
Settlements/ distributions | 0 | 0
Closing balance | 9,185 | 0
Change in unrealized investment gains/(losses) | 0 | 0
Fixed maturities | CMBS |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 5,235 | 19,134
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | (4,767)
Included in net income | 0 | 0
Included in OCI | (293) | 143
Purchases | 0 | 0
Sales | 0 | 0
Settlements/ distributions | (571) | (3,365)
Closing balance | 4,371 | 11,145
Change in unrealized investment gains/(losses) | 0 | 0
Fixed maturities | ABS |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 489 | 18,533
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | (16,402)
Included in net income | 0 | 0
Included in OCI | (153) | 162
Purchases | 0 | 9,750
Sales | 0 | 0
Settlements/ distributions | 0 | 0
Closing balance | 336 | 12,043
Change in unrealized investment gains/(losses) | 0 | 0
Other investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 51,262 | 65,789
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | (767) | 1,082
Included in OCI | 0 | 0
Purchases | 427 | 2,500
Sales | 0 | 0
Settlements/ distributions | (688) | (3,664)
Closing balance | 50,234 | 65,707
Change in unrealized investment gains/(losses) | (767) | 1,082
Other investments | Other privately held investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 36,934 | 44,518
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | 80 | 667
Included in OCI | 0 | 0
Purchases | 427 | 2,500
Sales | 0 | 0
Settlements/ distributions | 0 | 0
Closing balance | 37,441 | 47,685
Change in unrealized investment gains/(losses) | 80 | 667
Other investments | CLO-Equities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Opening balance | 14,328 | 21,271
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Included in net income | (847) | 415
Included in OCI | 0 | 0
Purchases | 0 | 0
Sales | 0 | 0
Settlements/ distributions | (688) | (3,664)
Closing balance | 12,793 | 18,022
Change in unrealized investment gains/(losses) | $ (847) | $ 415

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