OFFSETTING OF ASSETS AND LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	$ 207,876	$ 113,111
Net Amounts of Assets Presented in the Statement of Financial Position	207,876	113,111
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	52,487	21,565
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	10,700	11,280
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	144,689	80,266
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	2,444	17,317
Total derivatives
Gross Amounts of Recognized Assets	210,320	130,428
Net Amounts of Assets Presented in the Statement of Financial Position	210,320	130,428
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	52,487	21,565
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	10,700	11,280
Total derivatives, Net Amount	147,133	97,583
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	110,983	81,520
Net Amounts of Assets Presented in the Statement of Financial Position	110,983	81,520
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	52,487	21,565
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	10,700	11,280
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	47,796	48,675
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	1,517	1,330
Net Amounts of Assets Presented in the Statement of Financial Position	1,517	1,330
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	1,517	1,330
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	95,376	30,261
Net Amounts of Assets Presented in the Statement of Financial Position	95,376	30,261
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 95,376	$ 30,261