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Expenses related to the generation of investment income of the insurance entity which are not related to specified categories of investments.

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Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(2))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-16(Column G))
-URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915

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INVESTMENT OPERATIONS - Summary of Major Categories of Net Investment Income (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended							11 Months Ended	12 Months Ended
	Jan. 31, 2015	Mar. 31, 2015	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2014
Successor
Investment [Line Items]
Investment income before other investment expenses										$ 1,657,894	$ 1,971,567
Other investment expenses										24,946	29,111
Net investment income		$ 288,872	$ 496,150	$ 482,729	$ 488,460	$ 475,117	$ 467,165	$ 440,620	$ 436,291	1,632,948	1,942,456
Successor \| Fixed maturities
Investment [Line Items]
Investment income before other investment expenses										1,267,900	1,552,999
Successor \| Equity securities
Investment [Line Items]
Investment income before other investment expenses										40,907	38,838
Successor \| Mortgage loans
Investment [Line Items]
Investment income before other investment expenses										252,577	270,749
Successor \| Investment real estate
Investment [Line Items]
Investment income before other investment expenses										2,528	2,153
Successor \| Short-term investments
Investment [Line Items]
Investment income before other investment expenses										$ 93,982	$ 106,828
Predecessor
Investment [Line Items]
Investment income before other investment expenses	$ 177,478											$ 2,231,589
Other investment expenses	2,298											33,865
Net investment income	175,180											2,197,724
Predecessor \| Fixed maturities
Investment [Line Items]
Investment income before other investment expenses	140,104											1,712,297
Predecessor \| Equity securities
Investment [Line Items]
Investment income before other investment expenses	2,572											41,740
Predecessor \| Mortgage loans
Investment [Line Items]
Investment income before other investment expenses	24,977											360,778
Predecessor \| Investment real estate
Investment [Line Items]
Investment income before other investment expenses	112											4,482
Predecessor \| Short-term investments
Investment [Line Items]
Investment income before other investment expenses	$ 9,713											$ 112,292