OPERATING SEGMENTS (Details) - USD ($)	1 Months Ended	2 Months Ended	3 Months Ended
	Jan. 31, 2015	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015	Feb. 01, 2015
Operating Segment Assets
Goodwill					$ 735,700,000
Successor
Summarized financial information for the company's segments
Revenues		$ 640,961,000	$ 1,159,902,000
Segment Operating Income (Loss)		67,525,000	111,017,000
Realized investment gains (losses) - investments		(42,933,000)	83,142,000
Realized investment gains (losses) - derivatives		(56,000)	40,820,000
Income tax expense		(8,116,000)	(76,362,000)
Net income		16,420,000	158,617,000
Realized gain (losses) on investments
Investment gains (losses)		(35,056,000)	79,092,000
Less: amortization related to DAC/VOBA and benefits and settlement expenses		7,877,000	(4,050,000)
Realized investment gains (losses) - investments		(42,933,000)	83,142,000
Realized gain (losses) on derivatives
Derivative gains (losses)		(4,948,000)	31,908,000
Less: VA GMWB economic cost		(4,892,000)	(8,912,000)
Realized investment gains (losses) - derivatives		(56,000)	40,820,000
Other-than-temporary impairments		0	2,617,000
Operating Segment Assets
Investments and other assets			69,081,484,000	$ 65,091,991,000
Deferred policy acquisition costs and value of business acquired			1,872,861,000	1,562,373,000
Other intangibles			634,803,000	645,131,000
Goodwill			732,443,000	732,443,000	$ 735,700,000
Total assets			72,321,591,000	68,031,938,000
Successor | Operating | Life Marketing
Summarized financial information for the company's segments
Revenues		254,922,000	381,074,000
Segment Operating Income (Loss)		4,281,000	13,126,000
Operating Segment Assets
Investments and other assets			13,568,537,000	13,258,639,000
Deferred policy acquisition costs and value of business acquired			1,127,263,000	1,119,515,000
Other intangibles			314,883,000	319,623,000
Goodwill			200,274,000	200,274,000
Total assets			15,210,957,000	14,898,051,000
Successor | Operating | Acquisitions
Summarized financial information for the company's segments
Revenues		258,789,000	424,807,000
Segment Operating Income (Loss)		36,070,000	68,653,000
Operating Segment Assets
Investments and other assets			20,102,965,000	19,879,988,000
Deferred policy acquisition costs and value of business acquired			108,885,000	(178,662,000)
Other intangibles			39,019,000	39,658,000
Goodwill			14,524,000	14,524,000
Total assets			20,265,393,000	19,755,508,000
Successor | Operating | Annuities
Summarized financial information for the company's segments
Revenues		49,344,000	218,516,000
Segment Operating Income (Loss)		31,373,000	45,276,000
Operating Segment Assets
Investments and other assets			19,770,158,000	19,715,901,000
Deferred policy acquisition costs and value of business acquired			596,460,000	578,742,000
Other intangibles			193,448,000	196,780,000
Goodwill			336,677,000	336,677,000
Total assets			20,896,743,000	20,828,100,000
Successor | Operating | Stable Value Products
Summarized financial information for the company's segments
Revenues		10,342,000	29,902,000
Segment Operating Income (Loss)		6,115,000	14,448,000
Operating Segment Assets
Investments and other assets			1,973,590,000	2,006,263,000
Deferred policy acquisition costs and value of business acquired			2,245,000	2,357,000
Other intangibles			9,222,000	9,389,000
Goodwill			113,813,000	113,813,000
Total assets			2,098,870,000	2,131,822,000
Successor | Operating | Asset Protection
Summarized financial information for the company's segments
Revenues		49,296,000	73,679,000
Segment Operating Income (Loss)		3,643,000	4,257,000
Operating Segment Assets
Investments and other assets			799,709,000	766,294,000
Deferred policy acquisition costs and value of business acquired			38,008,000	40,421,000
Other intangibles			78,231,000	79,681,000
Goodwill			67,155,000	67,155,000
Total assets			983,103,000	953,551,000
Successor | Operating | Corporate and Other
Summarized financial information for the company's segments
Revenues		18,268,000	31,924,000
Segment Operating Income (Loss)		$ (13,957,000)	(34,743,000)
Operating Segment Assets
Investments and other assets			12,866,525,000	9,464,906,000
Deferred policy acquisition costs and value of business acquired			0	0
Other intangibles			0	0
Goodwill			0	0
Total assets			$ 12,866,525,000	$ 9,464,906,000
Predecessor
Summarized financial information for the company's segments
Revenues	$ 459,646,000
Segment Operating Income (Loss)	19,000,000
Realized investment gains (losses) - investments	89,414,000
Realized investment gains (losses) - derivatives	24,433,000
Income tax expense	(44,325,000)
Net income	88,522,000
Realized gain (losses) on investments
Investment gains (losses)	80,672,000
Less: amortization related to DAC/VOBA and benefits and settlement expenses	(8,742,000)
Realized investment gains (losses) - investments	89,414,000
Realized gain (losses) on derivatives
Derivative gains (losses)	22,031,000
Less: VA GMWB economic cost	(2,402,000)
Realized investment gains (losses) - derivatives	24,433,000
Other-than-temporary impairments	481,000
Predecessor | Operating | Life Marketing
Summarized financial information for the company's segments
Revenues	133,361,000
Segment Operating Income (Loss)	(2,271,000)
Predecessor | Operating | Acquisitions
Summarized financial information for the company's segments
Revenues	139,761,000
Segment Operating Income (Loss)	20,134,000
Predecessor | Operating | Annuities
Summarized financial information for the company's segments
Revenues	130,918,000
Segment Operating Income (Loss)	11,363,000
Predecessor | Operating | Stable Value Products
Summarized financial information for the company's segments
Revenues	8,181,000
Segment Operating Income (Loss)	4,529,000
Predecessor | Operating | Asset Protection
Summarized financial information for the company's segments
Revenues	24,566,000
Segment Operating Income (Loss)	1,907,000
Predecessor | Operating | Corporate and Other
Summarized financial information for the company's segments
Revenues	22,859,000
Segment Operating Income (Loss)	$ (16,662,000)