MONY CLOSED BLOCK OF BUSINESS - Schedule of Reconciliation of the Policyholder Dividend Obligation (Details) - USD ($) $ in Thousands	1 Months Ended	8 Months Ended	9 Months Ended
Jan. 31, 2015	Sep. 30, 2015	Sep. 30, 2016
Successor
Movement in Closed Block Dividend Obligation [Roll Forward]
Policyholder dividend obligation, beginning of period		$ 323,432	$ 0
Applicable to net revenue (losses)		(27,854)	(36,707)
Change in net unrealized investment gains (losses) allocated to the policyholder dividend obligation; includes deferred tax benefits of $(8,706) (Successor); $(83,000) (2015 - Successor); $47,277 (2015 - Predecessor)		(237,143)	300,814
Policyholder dividend obligation, end of period	$ 323,432	58,435	264,107
Deferred tax benefits		(83,000)	$ (8,706)
Predecessor
Movement in Closed Block Dividend Obligation [Roll Forward]
Policyholder dividend obligation, beginning of period	366,745	$ 500,453
Applicable to net revenue (losses)	(1,369)
Change in net unrealized investment gains (losses) allocated to the policyholder dividend obligation; includes deferred tax benefits of $(8,706) (Successor); $(83,000) (2015 - Successor); $47,277 (2015 - Predecessor)	135,077
Policyholder dividend obligation, end of period	500,453
Deferred tax benefits	$ 47,277

Amount of deferred income tax expense (benefit) pertaining to policyholder dividend obligation.

No definition available.

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- Definition

Amount of unrealized gain (loss) on investments that were allocated to the closed block.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 35
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6487164&loc=d3e30481-158566

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 55
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=34726331&loc=d3e31071-158570

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 50
-Paragraph 3
-Subparagraph (b)(10)
-URI http://asc.fasb.org/extlink&oid=6487222&loc=d3e30806-158569

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- Definition

The effect on the dividends to policyholders of the net results of operations (premiums less allocated expenses) for the period of the closed block.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 50
-Paragraph 3
-Subparagraph (b)(10)
-URI http://asc.fasb.org/extlink&oid=6487222&loc=d3e30806-158569

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 55
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=34726331&loc=d3e31071-158570

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- Definition

The liability as of the balance sheet date for the excess of the cumulative actual closed block earnings over the cumulative expected (actuarially determined) closed block earnings (each) for the period from the actuarial calculation date to the date of measurement. The excess will result in future dividends to closed block policyholders, unless offset by less favorable than expected future performance of the closed block. The policyholder dividend obligation, which may not have a negative balance, recognizes that a portion of earnings in certain cases will not inure to the stockholders of the insurance entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 55
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=34726331&loc=d3e31071-158570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 50
-Paragraph 3
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=6487222&loc=d3e30806-158569

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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