OFFSETTING OF ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	$ 225,011
Net Amounts of Assets Presented in the Statement of Financial Position	225,011
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	53,905
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	77,148
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	93,958
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	169,936
Total derivatives
Gross Amounts of Recognized Assets	394,947
Net Amounts of Assets Presented in the Statement of Financial Position	394,947
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	53,905
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	77,148
Total derivatives, Net Amount	263,894
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	225,011
Net Amounts of Assets Presented in the Statement of Financial Position	225,011
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	53,905
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	77,148
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	93,958
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	2,321
Net Amounts of Assets Presented in the Statement of Financial Position	2,321
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	2,321
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	167,275
Net Amounts of Assets Presented in the Statement of Financial Position	167,275
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	167,275
Other
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	340
Net Amounts of Assets Presented in the Statement of Financial Position	340
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	$ 340
Predecessor
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		$ 225,716
Net Amounts of Assets Presented in the Statement of Financial Position		225,716
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 Received		73,935
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		98,169
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement		68,254
Total derivatives
Gross Amounts of Recognized Assets		293,970
Net Amounts of Assets Presented in the Statement of Financial Position		293,970
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 Received		73,935
Total derivatives, Net Amount		166,423
Predecessor | Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		225,716
Net Amounts of Assets Presented in the Statement of Financial Position		225,716
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 Received		73,935
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		98,169
Predecessor | Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		1,051
Net Amounts of Assets Presented in the Statement of Financial Position		1,051
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		1,051
Predecessor | Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		66,843
Net Amounts of Assets Presented in the Statement of Financial Position		66,843
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		66,843
Predecessor | Other
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		360
Net Amounts of Assets Presented in the Statement of Financial Position		360
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		$ 360