OFFSETTING OF ASSETS AND LIABILITIES (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	$ 207,180,000	$ 207,876,000
Net Amounts of Assets Presented in the Statement of Financial Position	207,180,000	207,876,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	51,987,000	52,487,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	18,950,000	10,700,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	136,243,000	144,689,000
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	2,449,000	2,444,000
Total derivatives
Gross Amounts of Recognized Assets	209,629,000	210,320,000
Net Amounts of Assets Presented in the Statement of Financial Position	209,629,000	210,320,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	51,987,000	52,487,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	18,950,000	10,700,000
Total derivatives, Net Amount	138,692,000	147,133,000
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	133,565,000	110,983,000
Net Amounts of Assets Presented in the Statement of Financial Position	133,565,000	110,983,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	51,987,000	52,487,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	18,950,000	10,700,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	62,628,000	47,796,000
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	1,011,000	1,517,000
Net Amounts of Assets Presented in the Statement of Financial Position	1,011,000	1,517,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	1,011,000	1,517,000
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	72,604,000	95,376,000
Net Amounts of Assets Presented in the Statement of Financial Position	72,604,000	95,376,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 72,604,000	$ 95,376,000