MONY CLOSED BLOCK OF BUSINESS - Schedule of Reconciliation of the Policyholder Dividend Obligation (Details) - USD ($) $ in Thousands	1 Months Ended	5 Months Ended	6 Months Ended
	Jan. 31, 2015	Jun. 30, 2015	Jun. 30, 2016
Successor
Entity Information [Line Items]
Policyholder dividend obligation, beginning of period		$ 323,432	$ 0
Applicable to net revenue (losses)		(15,096)	(28,921)
Change in net unrealized investment gains (losses) allocated to the policyholder dividend obligation; includes deferred tax benefits of $5,109 (Successor); $89,618 (2015 - Successor); $47,277 (2015 - Predecessor)		(256,053)	261,343
Policyholder dividend obligation, end of period	$ 323,432	52,283	232,422
Deferred tax benefits		89,618	$ 5,109
Predecessor
Entity Information [Line Items]
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 $5,109 (Successor); $89,618 (2015 - Successor); $47,277 (2015 - Predecessor)	135,077
Policyholder dividend obligation, end of period	500,453
Deferred tax benefits	$ 47,277