OFFSETTING OF ASSETS AND LIABILITIES - Offsetting of Derivative Assets (Details) - Successor - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	$ 542,243	$ 352,016
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	542,243	352,016
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	171,384	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	100,890	105,842
Net Amount	269,969	203,792
Derivatives not subject to a master netting arrangement or similar arrangement
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	417,769	254,840
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	417,769	254,840
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	171,384	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	100,890	105,842
Net Amount	145,495	106,616
Free-Standing derivatives
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	417,769	254,840
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	417,769	254,840
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	171,384	42,382
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral Received	100,890	105,842
Net Amount	145,495	106,616
Total derivatives, not subject to a master netting arrangement or similar arrangement
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	124,474	97,176
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	124,474	97,176
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	124,474	97,176
Embedded derivative - Modco reinsurance treaties
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	2,573	1,215
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	2,573	1,215
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	2,573	1,215
Embedded derivative - GLWB
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	121,752	95,614
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	121,752	95,614
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	121,752	95,614
Other
Offsetting of Derivative Assets
Gross Amounts of Recognized Assets	149	347
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts of Assets Presented in the Statement of Financial Position	149	347
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	$ 149	$ 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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