OFFSETTING OF ASSETS AND LIABILITIES (Details 2) (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 Liabilities	$ 457,802	$ 657,874
Net Amounts of Liabilities Presented in the Statement of Financial Position	457,802	657,874
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 Paid	98,359	20,373
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	306,956	615,936
Total derivatives
Gross Amounts of Recognized Liabilities	457,802	657,874
Net Amounts of Liabilities Presented in the Statement of Financial Position	457,802	657,874
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 Paid	98,359	20,373
Total derivatives, Net Amount	306,956	615,936
Repurchase agreements
Repurchase agreements	350,000	150,000
Total Liabilities
Gross Amounts of Recognized Liabilities	807,802	807,874
Net Amounts of Liabilities Presented in the Statement of Financial Position	807,802	807,874
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 Paid	98,359	20,373
Net Amount	656,956	765,936
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	187,172	46,437
Net Amounts of Liabilities Presented in the Statement of Financial Position	187,172	46,437
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 Paid	98,359	20,373
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	36,326	4,499
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	206,918	411,907
Net Amounts of Liabilities Presented in the Statement of Financial Position	206,918	411,907
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	206,918	411,907
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	38,388	199,530
Net Amounts of Liabilities Presented in the Statement of Financial Position	38,388	199,530
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	38,388	199,530
Embedded derivative - FIA
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	25,324
Net Amounts of Liabilities Presented in the Statement of Financial Position	25,324
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 25,324