MANAGEMENT AGREEMENT AND RELATED PARTY TRANSACTIONS (Details 5) - Successor Company - USD ($) $ in Thousands	8 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Contributions and Distribution
Contributions from parent	$ 239,085	$ 64,151	$ 251,748
Distributions to parent	292,425	268,007	0
Majority Shareholder
Contributions and Distribution
Contributions from parent	474,844	331,189	251,748
Distributions to parent	472,282	332,158	251,748
Majority Shareholder | Asset Contribution, Cash
Contributions and Distribution
Contributions from parent	235,759	267,038	0
Majority Shareholder | Asset Contribution, Securities
Contributions and Distribution
Contributions from parent	116,526	0	0
Majority Shareholder | Asset Contribution, Loans
Contributions and Distribution
Contributions from parent	16,049	0	0
Majority Shareholder | Asset Contribution, Equity Investments, at Estimated Fair Value
Contributions and Distribution
Contributions from parent	38,346	0	0
Majority Shareholder | Asset Contribution, Interests in Joint Ventures and Partnerships
Contributions and Distribution
Contributions from parent	67,310	64,151	251,748
Majority Shareholder | Asset Contribution, Other
Contributions and Distribution
Contributions from parent	854	0	0
Majority Shareholder | Asset Distribution, Cash
Contributions and Distribution
Distributions to parent	192,037	64,151	251,748
Majority Shareholder | Asset Distribution, Loans
Contributions and Distribution
Distributions to parent	0	77,921	0
Majority Shareholder | Asset Distribution, Equity Investments at Estimated Fair Value
Contributions and Distribution
Distributions to parent	101,042	58,439	0
Majority Shareholder | Asset Distribution, Oil and Gas Properties, Net
Contributions and Distribution
Distributions to parent	179,203	0	0
Majority Shareholder | Asset Distribution, CLO Subordinated Notes
Contributions and Distribution
Distributions to parent	0	127,581	0
Majority Shareholder | Asset Distribution, Interests in Joint Ventures and Partnerships
Contributions and Distribution
Distributions to parent	$ 0	$ 4,066	$ 0