ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Jan. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassifications out of accumulated other comprehensive income (loss)
Benefits and settlement expenses, net of reinsurance ceded		$ (694,606)		$ (1,180,905)
Realized investment gains (losses): All other investments		(102,337)		(137,393)
Net impairment losses recognized in earnings		(5,734)		(5,734)
Income before income tax		96,910		189,737
Tax benefit (expense)		(33,070)		(63,036)
Net Income		63,840		126,701
Gains and losses on derivative instruments | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Benefits and settlement expenses, net of reinsurance ceded		(41)		(131)
Income before income tax		(41)		(131)
Tax benefit (expense)		14		45
Net Income		(27)		(86)
Unrealized gains and losses on available-for-sale securities | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Realized investment gains (losses): All other investments		3,360		3,733
Net impairment losses recognized in earnings		(5,734)		(5,734)
Income before income tax		(2,374)		(2,001)
Tax benefit (expense)		831		700
Net Income		$ (1,543)		$ (1,301)
Predecessor
Reclassifications out of accumulated other comprehensive income (loss)
Benefits and settlement expenses, net of reinsurance ceded	$ (267,287)		$ (747,816)		$ (1,476,335)
Realized investment gains (losses): All other investments	81,153		80,148		152,262
Net impairment losses recognized in earnings	(481)		(1,460)		(3,051)
Income before income tax	1,182		162,210		287,415
Tax benefit (expense)	327		(54,233)		(95,799)
Net Income	1,509		107,977		191,616
Predecessor | Gains and losses on derivative instruments | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Benefits and settlement expenses, net of reinsurance ceded	(36)		(614)		(1,284)
Income before income tax	(36)		(614)		(1,284)
Tax benefit (expense)	13		215		449
Net Income	(23)		(399)		(835)
Predecessor | Unrealized gains and losses on available-for-sale securities | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Realized investment gains (losses): All other investments	6,891		20,198		27,568
Net impairment losses recognized in earnings	(481)		(1,460)		(3,051)
Income before income tax	6,410		18,738		24,517
Tax benefit (expense)	(2,244)		(6,558)		(8,581)
Net Income	4,166		12,180		15,936
Predecessor | Minimum Pension Liability Adjustment | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassifications out of accumulated other comprehensive income (loss)
Amortization of net actuarial gain/(loss)	(808)		(1,900)		(3,800)
Amortization of prior service credit/(cost)	31		95		190
Amortization of transition asset/(obligation)	5
Income before income tax	(772)		(1,805)		(3,610)
Tax benefit (expense)	270		632		1,263
Net Income	$ (502)		$ (1,173)		$ (2,347)