OFFSETTING OF ASSETS AND LIABILITIES - Schedule of Derivative Instruments by Assets (Details) - Successor - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	$ 448,380	$ 323,570
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	448,380	323,570
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	37,967	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	199,143	105,842
Net Amount	211,270	175,346
Total derivatives, subject to a master netting arrangement or similar arrangement
Offsetting of Derivative Assets
Derivatives Subject to Master Netting Arrangement, Gross Amounts of Recognized Assets	391,027	254,840
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	391,027	254,840
Derivatives Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	37,967	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	199,143	105,842
Net Amount	153,917	106,616
Free-Standing derivatives
Offsetting of Derivative Assets
Derivatives Subject to Master Netting Arrangement, Gross Amounts of Recognized Assets	391,027	254,840
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	391,027	254,840
Derivatives Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	37,967	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	199,143	105,842
Net Amount	153,917	106,616
Total derivatives, not subject to a master netting arrangement or similar arrangement
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	57,353	68,730
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	57,353	68,730
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Net Amount	57,353	68,730
Embedded derivative - Modco reinsurance treaties
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	282	1,215
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	282	1,215
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Net Amount	282	1,215
Embedded derivative - GMWB
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	33,146	49,007
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	33,146	49,007
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Net Amount	33,146	49,007
Derivatives with PLC
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	23,620	18,161
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	23,620	18,161
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Net Amount	23,620	18,161
Other
Offsetting of Derivative Assets
Derivatives Not Subject to Master Netting Arrangement. Gross Amounts of Recognized Assets	305	347
Gross Amounts Offset in the Settlement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	305	347
Derivatives Not Subject to Master Netting Arrangement, Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	0	0
Net Amount	$ 305	$ 347

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative assets.

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