OFFSETTING OF ASSETS AND LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	$ 276,387	$ 307,116
Net Amounts of Assets Presented in the Statement of Financial Position	276,387	307,116
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	58,156	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	34,311	10,700
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	183,920	243,929
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	307	451
Total derivatives
Gross Amounts of Recognized Assets	276,694	307,567
Net Amounts of Assets Presented in the Statement of Financial Position	276,694	307,567
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	58,156	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	34,311	10,700
Total derivatives, Net Amount	184,227	244,380
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	170,970	110,983
Net Amounts of Assets Presented in the Statement of Financial Position	170,970	110,983
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	58,156	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	34,311	10,700
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	78,503	47,796
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	1,381	1,517
Net Amounts of Assets Presented in the Statement of Financial Position	1,381	1,517
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	1,381	1,517
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	104,036	194,616
Net Amounts of Assets Presented in the Statement of Financial Position	104,036	194,616
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 104,036	$ 194,616