OFFSETTING OF ASSETS AND LIABILITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	$ 550,743	$ 455,161
Net Amounts of Liabilities Presented in the Statement of Financial Position	550,743	455,161
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	54,682	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	46,113	98,359
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	449,948	304,315
Total derivatives
Gross Amounts of Recognized Liabilities	550,743	455,161
Net Amounts of Liabilities Presented in the Statement of Financial Position	550,743	455,161
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	54,682	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	46,113	98,359
Total derivatives, Net Amount	449,948	304,315
Repurchase agreements
Repurchase agreements	420,490	350,000
Total Liabilities
Gross Amounts of Recognized Liabilities	971,233	805,161
Net Amounts of Liabilities Presented in the Statement of Financial Position	971,233	805,161
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	54,682	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	46,113	98,359
Net Amount	870,438	654,315
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	100,982	187,172
Net Amounts of Liabilities Presented in the Statement of Financial Position	100,982	187,172
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	54,682	52,487
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	46,113	98,359
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	187	36,326
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	318,999	206,918
Net Amounts of Liabilities Presented in the Statement of Financial Position	318,999	206,918
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	318,999	206,918
Funds Withheld derivative
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	50,092	34,251
Net Amounts of Liabilities Presented in the Statement of Financial Position	50,092	34,251
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	50,092	34,251
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	10,445	1,496
Net Amounts of Liabilities Presented in the Statement of Financial Position	10,445	1,496
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	10,445	1,496
Embedded derivative - FIA
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	69,615	25,324
Net Amounts of Liabilities Presented in the Statement of Financial Position	69,615	25,324
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	69,615	25,324
Embedded derivative - IUL
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	610
Net Amounts of Liabilities Presented in the Statement of Financial Position	610
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 610