DERIVATIVE FINANCIAL INSTRUMENTS (Details) (USD $)	2 Months Ended	1 Months Ended	3 Months Ended
	Mar. 31, 2015	Jan. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Oct. 31, 2012 item
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	$ (4,948,000)
Notional Amount, Other long-term investments	8,162,241,000
Fair Value, Other long-term investments	353,441,000
Notional Amount, Other liabilities	8,147,831,000
Fair Value, Other liabilities	595,997,000
PLC
Notional amount and fair value of the entity's derivative financial instruments
Number of portfolio maintenance agreements	2
Derivatives not designated as hedging instruments
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(4,948,000)
Derivatives not designated as hedging instruments | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(40,167,000)
Derivatives not designated as hedging instruments | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	1,980,000
Derivatives not designated as hedging instruments | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	411,000
Derivatives not designated as hedging instruments | Interest rate futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	410,966,000
Fair Value, Other long-term investments	4,731,000
Notional Amount, Other liabilities	8,140,000
Fair Value, Other liabilities	54,000
Derivatives not designated as hedging instruments | Interest rate futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(48,000)
Derivatives not designated as hedging instruments | Equity futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	26,607,000
Fair Value, Other long-term investments	102,000
Notional Amount, Other liabilities	666,286,000
Fair Value, Other liabilities	4,547,000
Derivatives not designated as hedging instruments | Equity futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(32,469,000)
Derivatives not designated as hedging instruments | Equity futures | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	184,000
Derivatives not designated as hedging instruments | Equity futures | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	14,000
Derivatives not designated as hedging instruments | Currency futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	112,106,000
Fair Value, Other long-term investments	524,000
Notional Amount, Other liabilities	122,150,000
Fair Value, Other liabilities	1,379,000
Derivatives not designated as hedging instruments | Currency futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	6,137,000
Derivatives not designated as hedging instruments | Volatility futures | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	4,000
Derivatives not designated as hedging instruments | Equity options
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	2,285,482,000
Fair Value, Other long-term investments	163,491,000
Notional Amount, Other liabilities	960,718,000
Fair Value, Other liabilities	38,866,000
Derivatives not designated as hedging instruments | Equity options | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(21,774,000)
Derivatives not designated as hedging instruments | Equity options | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	4,375,000
Derivatives not designated as hedging instruments | Equity options | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	140,000
Derivatives not designated as hedging instruments | Interest rate swaptions
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	225,000,000
Fair Value, Other long-term investments	5,690,000
Derivatives not designated as hedging instruments | Interest rate swaptions | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(11,328,000)
Derivatives not designated as hedging instruments | Interest rate swaps
Notional amount and fair value of the entity's derivative financial instruments
Positions held	0
Notional Amount, Other long-term investments	1,725,000,000
Fair Value, Other long-term investments	99,230,000
Notional Amount, Other liabilities	250,000,000
Fair Value, Other liabilities	1,792,000
Derivatives not designated as hedging instruments | Interest rate swaps | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(54,791,000)
Derivatives not designated as hedging instruments | Embedded derivative - GMWB
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	35,870,000
Notional Amount, Other long-term investments	1,799,940,000
Fair Value, Other long-term investments	55,145,000
Notional Amount, Other liabilities	1,322,637,000
Fair Value, Other liabilities	44,312,000
Derivatives not designated as hedging instruments | Funds withheld derivative
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities	1,477,462,000
Fair Value, Other liabilities	71,533,000
Derivatives not designated as hedging instruments | Funds withheld derivative | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	38,236,000
Derivatives not designated as hedging instruments | Embedded derivative - FIA
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities	790,225,000
Fair Value, Other liabilities	83,126,000
Derivatives not designated as hedging instruments | Embedded derivative - FIA | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	(2,583,000)
Derivatives not designated as hedging instruments | Embedded derivative - IUL
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments	18,262,000
Fair Value, Other long-term investments	8,593,000
Derivatives not designated as hedging instruments | Embedded derivative - IUL | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	257,000
Derivatives not designated as hedging instruments | Embedded derivative - Modco reinsurance treaties
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	32,191,000
Notional Amount, Other long-term investments	65,609,000
Fair Value, Other long-term investments	1,572,000
Notional Amount, Other liabilities	2,512,057,000
Fair Value, Other liabilities	341,698,000
Derivatives not designated as hedging instruments | Derivatives with PLC
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	565,000
Notional Amount, Other long-term investments	1,510,682,000
Fair Value, Other long-term investments	22,505,000
Derivatives not designated as hedging instruments | Other derivatives
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross	72,000
Notional Amount, Other long-term investments	849,000
Fair Value, Other long-term investments	451,000
Notional Amount, Other liabilities	609,000
Fair Value, Other liabilities	42,000
Cash flow hedges. | Inflation
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities	19,285,000
Fair Value, Other liabilities	55,000
Predecessor
Notional amount and fair value of the entity's derivative financial instruments
Number of portfolio maintenance agreements					2
Realized investment gains (losses) - derivatives, gross		22,031,000	(39,574,000)
Notional Amount, Other long-term investments				7,174,182,000
Fair Value, Other long-term investments				270,701,000
Notional Amount, Other liabilities				7,661,143,000
Fair Value, Other liabilities				629,535,000
Predecessor | Derivatives not designated as hedging instruments
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		22,031,000	(39,574,000)
Predecessor | Derivatives not designated as hedging instruments | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		75,861,000	17,479,000
Predecessor | Derivatives not designated as hedging instruments | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(1,032,000)	3,072,000
Predecessor | Derivatives not designated as hedging instruments | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(598,000)
Predecessor | Derivatives not designated as hedging instruments | Interest rate futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				27,977,000
Fair Value, Other long-term investments				938,000
Predecessor | Derivatives not designated as hedging instruments | Interest rate futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		1,413,000	4,250,000
Predecessor | Derivatives not designated as hedging instruments | Equity futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				26,483,000
Fair Value, Other long-term investments				427,000
Notional Amount, Other liabilities				385,256,000
Fair Value, Other liabilities				15,069,000
Predecessor | Derivatives not designated as hedging instruments | Equity futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		9,221,000	(2,651,000)
Predecessor | Derivatives not designated as hedging instruments | Equity futures | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(184,000)	345,000
Predecessor | Derivatives not designated as hedging instruments | Equity futures | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		3,000
Predecessor | Derivatives not designated as hedging instruments | Currency futures
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				197,648,000
Fair Value, Other long-term investments				2,384,000
Predecessor | Derivatives not designated as hedging instruments | Currency futures | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		7,778,000	(1,278,000)
Predecessor | Derivatives not designated as hedging instruments | Variance swaps | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross			(1,850,000)
Predecessor | Derivatives not designated as hedging instruments | Equity options
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				1,921,167,000
Fair Value, Other long-term investments				163,212,000
Notional Amount, Other liabilities				699,295,000
Fair Value, Other liabilities				47,077,000
Predecessor | Derivatives not designated as hedging instruments | Equity options | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		3,047,000	(12,341,000)
Predecessor | Derivatives not designated as hedging instruments | Equity options | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(2,617,000)	994,000
Predecessor | Derivatives not designated as hedging instruments | Equity options | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(115,000)
Predecessor | Derivatives not designated as hedging instruments | Interest rate swaptions
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				625,000,000
Fair Value, Other long-term investments				8,012,000
Predecessor | Derivatives not designated as hedging instruments | Interest rate swaptions | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		9,268,000	(9,403,000)
Predecessor | Derivatives not designated as hedging instruments | Interest rate swaps
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				1,550,000,000
Fair Value, Other long-term investments				50,743,000
Notional Amount, Other liabilities				275,000,000
Fair Value, Other liabilities				3,599,000
Predecessor | Derivatives not designated as hedging instruments | Interest rate swaps | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		122,710,000	57,368,000
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - GMWB
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(68,503,000)	(27,315,000)
Notional Amount, Other long-term investments				1,302,895,000
Fair Value, Other long-term investments				37,497,000
Notional Amount, Other liabilities				1,702,899,000
Fair Value, Other liabilities				63,460,000
Predecessor | Derivatives not designated as hedging instruments | Funds withheld derivative
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities				1,233,424,000
Fair Value, Other liabilities				57,305,000
Predecessor | Derivatives not designated as hedging instruments | Funds withheld derivative | Annuity account
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(9,073,000)	10,699,000
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - FIA
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities				749,933,000
Fair Value, Other liabilities				124,465,000
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - FIA | FIA
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		1,769,000	1,733,000
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - IUL
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other long-term investments				12,019,000
Fair Value, Other long-term investments				6,691,000
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - IUL | IUL
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(486,000)
Predecessor | Derivatives not designated as hedging instruments | Embedded derivative - Modco reinsurance treaties
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(68,026,000)	(60,169,000)
Notional Amount, Other long-term investments				25,760,000
Fair Value, Other long-term investments				1,051,000
Notional Amount, Other liabilities				2,562,848,000
Fair Value, Other liabilities				311,727,000
Predecessor | Derivatives not designated as hedging instruments | Derivatives with PLC
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		15,863,000	105,000
Notional Amount, Other long-term investments				1,497,010,000
Fair Value, Other long-term investments				6,077,000
Predecessor | Derivatives not designated as hedging instruments | Other derivatives
Notional amount and fair value of the entity's derivative financial instruments
Realized investment gains (losses) - derivatives, gross		(37,000)	(61,000)
Notional Amount, Other long-term investments				242,000
Fair Value, Other long-term investments				360,000
Predecessor | Cash flow hedges. | Inflation
Notional amount and fair value of the entity's derivative financial instruments
Notional Amount, Other liabilities				40,469,000
Fair Value, Other liabilities				$ 142,000