INVESTMENT OPERATIONS (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		8 Months Ended	9 Months Ended
	Jan. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net realized gains (losses) for all other investments
Fixed maturities		$ (1,304)		$ 2,398
Equity securities		51		72
Impairments on fixed maturity securities		(10,064)		(15,798)
Modco trading portfolio		8,377		(133,524)
Other investments		(1,815)		(1,040)
Total realized gains (losses) - investments		(4,755)		(147,892)
Gross realized gains on investments available-for-sale (fixed maturities, equity securities, and short-term investments)		700		7,600
Gross realized losses		12,000		21,000
Impairment losses on investments available-for-sale		10,100		15,800
Fair value (proceeds) of securities in an unrealized gain position sold		94,800		807,800
Gain realized on the sale of securities in an unrealized gain position		700		7,600
Fair value (proceeds) of securities sold in an unrealized loss position		34,600		83,900
Loss realized on the sale of securities in an unrealized loss position		$ 2,000		$ 5,200
Predecessor
Net realized gains (losses) for all other investments
Fixed maturities	$ 6,891		$ 22,244		$ 49,812
Impairments on fixed maturity securities	(481)		(2,354)		(5,405)
Modco trading portfolio	73,062		(17,225)		110,067
Other investments	1,200		(5,135)		(7,383)
Total realized gains (losses) - investments	80,672		(2,470)		147,091
Gross realized gains on investments available-for-sale (fixed maturities, equity securities, and short-term investments)	6,900		22,500		50,600
Gross realized losses	500		2,500		5,900
Impairment losses on investments available-for-sale	400		2,300		5,100
Fair value (proceeds) of securities in an unrealized gain position sold	172,600		494,000		1,100,000
Gain realized on the sale of securities in an unrealized gain position	6,900		22,500		50,600
Fair value (proceeds) of securities sold in an unrealized loss position	$ 400		2,300		6,700
Loss realized on the sale of securities in an unrealized loss position			$ 300		$ 800