OFFSETTING OF ASSETS AND LIABILITIES (Details 2) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	$ 24,976
Net Amounts of Liabilities Presented in the Statement of Financial Position	24,976
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	24,953
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	23
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	608,360
Total derivatives
Gross Amounts of Recognized Liabilities	633,336
Net Amounts of Liabilities Presented in the Statement of Financial Position	633,336
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	24,953
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	23
Total derivatives, Net Amount	608,360
Repurchase agreements
Repurchase agreements	455,718
Total Liabilities
Gross Amounts of Recognized Liabilities	1,089,054
Net Amounts of Liabilities Presented in the Statement of Financial Position	1,089,054
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	24,953
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	23
Net Amount	1,064,078
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	24,976
Net Amounts of Liabilities Presented in the Statement of Financial Position	24,976
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	24,953
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid	23
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	221,849
Net Amounts of Liabilities Presented in the Statement of Financial Position	221,849
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	221,849
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	288,091
Net Amounts of Liabilities Presented in the Statement of Financial Position	288,091
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	288,091
Embedded derivative - FIA
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	76,709
Net Amounts of Liabilities Presented in the Statement of Financial Position	76,709
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	76,709
Embedded derivative - IUL
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities	21,711
Net Amounts of Liabilities Presented in the Statement of Financial Position	21,711
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 21,711
Predecessor
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		$ 65,887
Net Amounts of Liabilities Presented in the Statement of Financial Position		65,887
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid		12,258
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		17
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement		754,852
Total derivatives
Gross Amounts of Recognized Liabilities		820,739
Net Amounts of Liabilities Presented in the Statement of Financial Position		820,739
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid		12,258
Total derivatives, Net Amount		754,869
Repurchase agreements
Repurchase agreements		50,000
Total Liabilities
Gross Amounts of Recognized Liabilities		870,739
Net Amounts of Liabilities Presented in the Statement of Financial Position		870,739
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid		12,258
Net Amount		804,869
Predecessor | Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		65,887
Net Amounts of Liabilities Presented in the Statement of Financial Position		65,887
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Paid		12,258
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		17
Predecessor | Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		311,727
Net Amounts of Liabilities Presented in the Statement of Financial Position		311,727
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		311,727
Predecessor | Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		311,969
Net Amounts of Liabilities Presented in the Statement of Financial Position		311,969
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		311,969
Predecessor | Embedded derivative - FIA
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		124,465
Net Amounts of Liabilities Presented in the Statement of Financial Position		124,465
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		124,465
Predecessor | Embedded derivative - IUL
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Liabilities		6,691
Net Amounts of Liabilities Presented in the Statement of Financial Position		6,691
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		$ 6,691