DEFERRED POLICY ACQUISITION COSTS AND VALUE OF BUSINESS ACQUIRED (Details) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2015	Dec. 31, 2015	Dec. 31, 2016
Successor
Balances and changes in DAC
Balance, beginning of period		$ 0	$ 288,611
Capitalization of commissions, sales, and issue expenses		302,839	327,938
Amortization		(24,187)	(48,286)
Change in unrealized investment gains and losses		9,959	4,065
Balance, end of period	$ 0	288,611	572,328
Balances and changes in VOBA
Balance, beginning of period		1,276,886	1,270,197
Acquisitions		0	285,092
Amortization		(69,869)	(100,778)
Change in unrealized gains and losses		69,226	(7,010)
Other		(6,046)	0
Balance, end of period	1,276,886	1,270,197	1,447,501
Expected amortization of VOBA for the next five years
2017			131,294
2018			125,127
2019			118,150
2020			103,637
2021			$ 91,571
Predecessor
Balances and changes in DAC
Balance, beginning of period	2,647,980	2,574,780
Capitalization of commissions, sales, and issue expenses	22,513
Amortization	1,117
Change in unrealized investment gains and losses	(96,830)
Balance, end of period	2,574,780
Balances and changes in VOBA
Balance, beginning of period	646,590	$ 561,983
Acquisitions	0
Amortization	(5,189)
Change in unrealized gains and losses	(79,418)
Other	0
Balance, end of period	$ 561,983