OFFSETTING OF ASSETS AND LIABILITIES (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	$ 273,814,000
Net Amounts of Assets Presented in the Statement of Financial Position	273,814,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	41,440,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	120,634,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	111,740,000
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement	79,627,000
Total derivatives
Gross Amounts of Recognized Assets	353,441,000
Net Amounts of Assets Presented in the Statement of Financial Position	353,441,000us-gaap_DerivativeAssets
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	41,440,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	120,634,000
Total derivatives, Net Amount	191,367,000
Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	273,814,000
Net Amounts of Assets Presented in the Statement of Financial Position	273,814,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	41,440,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	120,634,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	111,740,000
Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	1,572,000
Net Amounts of Assets Presented in the Statement of Financial Position	1,572,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	1,572,000
Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	55,145,000
Net Amounts of Assets Presented in the Statement of Financial Position	55,145,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	55,145,000
Derivatives with PLC
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	22,505,000
Net Amounts of Assets Presented in the Statement of Financial Position	22,505,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	22,505,000
Other
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets	405,000
Net Amounts of Assets Presented in the Statement of Financial Position	405,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount	405,000
Predecessor
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		225,716,000
Net Amounts of Assets Presented in the Statement of Financial Position		225,716,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received		73,935,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		98,169,000
Total derivatives, not subject to a master netting arrangement or similar arrangement
Total derivatives, not subject to a master netting arrangement or similar arrangement		44,985,000
Total derivatives
Gross Amounts of Recognized Assets		270,701,000
Net Amounts of Assets Presented in the Statement of Financial Position		270,701,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received		73,935,000
Total derivatives, Net Amount		143,154,000
Predecessor \| Free-Standing derivatives
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		225,716,000
Net Amounts of Assets Presented in the Statement of Financial Position		225,716,000
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		53,612,000
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received		73,935,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		98,169,000
Predecessor \| Embedded derivative - Modco reinsurance treaties
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		1,051,000
Net Amounts of Assets Presented in the Statement of Financial Position		1,051,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		1,051,000
Predecessor \| Embedded derivative - GMWB
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		37,497,000
Net Amounts of Assets Presented in the Statement of Financial Position		37,497,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		37,497,000
Predecessor \| Derivatives with PLC
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		6,077,000
Net Amounts of Assets Presented in the Statement of Financial Position		6,077,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		6,077,000
Predecessor \| Other
Total derivatives, subject to a master netting arrangement or similar arrangement
Gross Amounts of Recognized Assets		360,000
Net Amounts of Assets Presented in the Statement of Financial Position		360,000
Total derivatives, subject to a master netting arrangement or similar arrangement, Net Amount		$ 360,000

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