FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 4) - Successor Company	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares $ / barrel	Dec. 31, 2015 USD ($) $ / shares $ / barrel
Minimum
Valuation techniques used for assets, measured at fair value
Weight ascribed to each valuation technique	0.00%	0.00%
Maximum
Valuation techniques used for assets, measured at fair value
Weight ascribed to each valuation technique	100.00%	100.00%
Significant Unobservable Inputs (Level 3) | Corporate Debt Securities
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 175,206,000	$ 194,986,000
Significant Unobservable Inputs (Level 3) | Residential Mortgage- Backed Securities
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	40,663,000	49,621,000
Significant Unobservable Inputs (Level 3) | Corporate loans, at estimated fair value
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	129,194,000	298,734,000
Significant Unobservable Inputs (Level 3) | Equity Investments, at estimated fair value
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 132,305,000	$ 146,648,000
Significant Unobservable Inputs (Level 3) | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Illiquidity discount	5.00%	5.00%
Significant Unobservable Inputs (Level 3) | Corporate Debt Securities and Equity Investments
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 408,100,000
Significant Unobservable Inputs (Level 3) | Interests in Joint Ventures and Partnerships
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	793,996,000	$ 888,408,000
Significant Unobservable Inputs (Level 3) | Options
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	1,001,000	$ 95,000
Significant Unobservable Inputs (Level 3) | Common stock warrants
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 1,500,000
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate Debt Securities | Weighted Average
Valuation techniques used for assets, measured at fair value
Yield	14.00%	23.00%
Net leverage	9	10
EBITDA multiple	6	7
Discount margin	11.05%	7.50%
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate Debt Securities | Minimum
Valuation techniques used for assets, measured at fair value
Yield	5.00%	6.00%
Net leverage	7	10
EBITDA multiple	0	7
Discount margin	11.00%	7.50%
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate Debt Securities | Maximum
Valuation techniques used for assets, measured at fair value
Yield	15.00%	31.00%
Net leverage	16	12
EBITDA multiple	9	10
Discount margin	11.50%	7.50%
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate loans, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
Yield	13.00%	11.00%
Net leverage	11	7
EBITDA multiple	6	9
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate loans, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Yield	11.00%	3.00%
Net leverage	5	1
EBITDA multiple	0	6
Significant Unobservable Inputs (Level 3) | Yield analysis | Corporate loans, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
Yield	16.00%	18.00%
Net leverage	82	19
EBITDA multiple	19	15
Significant Unobservable Inputs (Level 3) | Yield analysis | Interests in Joint Ventures and Partnerships
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 24,400,000	$ 17,500,000
Significant Unobservable Inputs (Level 3) | Yield analysis | Interests in Joint Ventures and Partnerships | Weighted Average
Valuation techniques used for assets, measured at fair value
Yield	19.00%	16.00%
Net leverage	2	2
EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Yield analysis | Interests in Joint Ventures and Partnerships | Minimum
Valuation techniques used for assets, measured at fair value
Yield	19.00%	16.00%
Net leverage	2	2
EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Yield analysis | Interests in Joint Ventures and Partnerships | Maximum
Valuation techniques used for assets, measured at fair value
Yield	19.00%	16.00%
Net leverage	2	2
EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Market comparables | Corporate Debt Securities | Weighted Average
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	12
Significant Unobservable Inputs (Level 3) | Market comparables | Corporate Debt Securities | Minimum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	12
Significant Unobservable Inputs (Level 3) | Market comparables | Corporate Debt Securities | Maximum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	12
Significant Unobservable Inputs (Level 3) | Market comparables | Equity Investments, at estimated fair value
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 20,000,000	$ 11,300,000
Significant Unobservable Inputs (Level 3) | Market comparables | Equity Investments, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	11	8
Forward EBITDA multiple	9	8
Significant Unobservable Inputs (Level 3) | Market comparables | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	0	4
Forward EBITDA multiple	0	3
Significant Unobservable Inputs (Level 3) | Market comparables | Equity Investments, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	14	13
Forward EBITDA multiple	13	11
Significant Unobservable Inputs (Level 3) | Market comparables | Interests in Joint Ventures and Partnerships
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 9,800,000	$ 98,900,000
Significant Unobservable Inputs (Level 3) | Market comparables | Interests in Joint Ventures and Partnerships | Weighted Average
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	4	5
Forward EBITDA multiple	9
Capitalization Rate	7.00%
Significant Unobservable Inputs (Level 3) | Market comparables | Interests in Joint Ventures and Partnerships | Minimum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	1	1
Forward EBITDA multiple	9
Capitalization Rate	3.00%
Significant Unobservable Inputs (Level 3) | Market comparables | Interests in Joint Ventures and Partnerships | Maximum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	9	9
Forward EBITDA multiple	9
Capitalization Rate	12.00%
Significant Unobservable Inputs (Level 3) | Market comparables | Options | Weighted Average
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	9	9
Forward EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Market comparables | Options | Minimum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	9	9
Forward EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Market comparables | Options | Maximum
Valuation techniques used for assets, measured at fair value
LTM EBITDA multiple	9	9
Forward EBITDA multiple	7	8
Significant Unobservable Inputs (Level 3) | Black Scholes Options Pricing Model | Corporate Debt Securities | Weighted Average
Valuation techniques used for assets, measured at fair value
Risk-Free Rate	1.00%
Volatility	85.00%
Significant Unobservable Inputs (Level 3) | Black Scholes Options Pricing Model | Corporate Debt Securities | Minimum
Valuation techniques used for assets, measured at fair value
Risk-Free Rate	1.00%
Volatility	85.00%
Significant Unobservable Inputs (Level 3) | Black Scholes Options Pricing Model | Corporate Debt Securities | Maximum
Valuation techniques used for assets, measured at fair value
Risk-Free Rate	1.00%
Volatility	85.00%
Significant Unobservable Inputs (Level 3) | Broker quotes | Corporate Debt Securities | Weighted Average
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares	$ 102
Significant Unobservable Inputs (Level 3) | Broker quotes | Corporate Debt Securities | Minimum
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares	101
Significant Unobservable Inputs (Level 3) | Broker quotes | Corporate Debt Securities | Maximum
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares	$ 103
Significant Unobservable Inputs (Level 3) | Broker quotes | Equity Investments, at estimated fair value
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 14,500,000	$ 6,400,000
Significant Unobservable Inputs (Level 3) | Broker quotes | Equity Investments, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares		$ 4
Significant Unobservable Inputs (Level 3) | Broker quotes | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares		0
Significant Unobservable Inputs (Level 3) | Broker quotes | Equity Investments, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
Offered quotes (in dollars per share) | $ / shares		$ 5
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Residential Mortgage- Backed Securities | Weighted Average
Valuation techniques used for assets, measured at fair value
Probability of default	2.00%	1.00%
Loss severity	43.00%	40.00%
Constant prepayment rate	18.00%	15.00%
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Residential Mortgage- Backed Securities | Minimum
Valuation techniques used for assets, measured at fair value
Probability of default	0.00%	0.00%
Loss severity	35.00%	35.00%
Constant prepayment rate	12.00%	12.00%
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Residential Mortgage- Backed Securities | Maximum
Valuation techniques used for assets, measured at fair value
Probability of default	3.00%	3.00%
Loss severity	50.00%	45.00%
Constant prepayment rate	23.00%	18.00%
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Equity Investments, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	9.00%	9.00%
LTM EBITDA exit multiple	8	8
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	7.00%	7.00%
LTM EBITDA exit multiple	7	0
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Equity Investments, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	14.00%	14.00%
LTM EBITDA exit multiple	10	9
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Interests in Joint Ventures and Partnerships
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 43,500,000	$ 164,400,000
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Interests in Joint Ventures and Partnerships | Weighted Average
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	10.00%	8.00%
Average Price Per B O E | $ / barrel	20.26	20.61
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Interests in Joint Ventures and Partnerships | Minimum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	6.00%	6.00%
Average Price Per B O E | $ / barrel	18.81	14.33
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Interests in Joint Ventures and Partnerships | Maximum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	20.00%	20.00%
Average Price Per B O E | $ / barrel	22.38	23.22
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Options | Weighted Average
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	15.00%	14.00%
LTM EBITDA exit multiple	5	8
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Options | Minimum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	15.00%	14.00%
LTM EBITDA exit multiple	5	8
Significant Unobservable Inputs (Level 3) | Discounted cash flows | Options | Maximum
Valuation techniques used for assets, measured at fair value
Weighted average cost of capital	15.00%	14.00%
LTM EBITDA exit multiple	5	8
Significant Unobservable Inputs (Level 3) | Inputs to market comparables, discounted cash flow and broker quotes | Equity Investments, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables		52.00%
Weight ascribed to discounted cash flows		42.00%
Illiquidity discount		11.00%
Weight ascribed to broker quotes		6.00%
Significant Unobservable Inputs (Level 3) | Inputs to market comparables, discounted cash flow and broker quotes | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables		0.00%
Weight ascribed to discounted cash flows		0.00%
Illiquidity discount		0.00%
Weight ascribed to broker quotes		0.00%
Significant Unobservable Inputs (Level 3) | Inputs to market comparables, discounted cash flow and broker quotes | Equity Investments, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables		100.00%
Weight ascribed to discounted cash flows		100.00%
Illiquidity discount		15.00%
Weight ascribed to broker quotes		100.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Equity Investments, at estimated fair value | Weighted Average
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	47.00%
Weight ascribed to discounted cash flows	53.00%
Illiquidity discount	8.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Equity Investments, at estimated fair value | Minimum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	0.00%
Weight ascribed to discounted cash flows	0.00%
Illiquidity discount	5.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Equity Investments, at estimated fair value | Maximum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	100.00%
Weight ascribed to discounted cash flows	100.00%
Illiquidity discount	15.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Interests in Joint Ventures and Partnerships | Weighted Average
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	27.00%	43.00%
Weight ascribed to discounted cash flows	45.00%	57.00%
Weight ascribed to yield analysis	28.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Interests in Joint Ventures and Partnerships | Minimum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	0.00%	0.00%
Weight ascribed to discounted cash flows	0.00%	0.00%
Weight ascribed to yield analysis	0.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Interests in Joint Ventures and Partnerships | Maximum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	100.00%	100.00%
Weight ascribed to discounted cash flows	100.00%	100.00%
Weight ascribed to yield analysis	100.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Options
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	50.00%	50.00%
Weight ascribed to discounted cash flows	50.00%	50.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Options | Weighted Average
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	50.00%	50.00%
Weight ascribed to discounted cash flows	50.00%	50.00%
Illiquidity discount	10.00%	10.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Options | Minimum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	50.00%	50.00%
Weight ascribed to discounted cash flows	50.00%	50.00%
Illiquidity discount	10.00%	10.00%
Significant Unobservable Inputs (Level 3) | Inputs to both market comparables and discounted cash flow | Options | Maximum
Valuation techniques used for assets, measured at fair value
Weight ascribed to market comparables	50.00%	50.00%
Weight ascribed to discounted cash flows	50.00%	50.00%
Illiquidity discount	10.00%	10.00%
Crude Oil
Valuation techniques used for assets, measured at fair value
Percentage of share in total revenue	23.00%	25.00%
Natural Gas
Valuation techniques used for assets, measured at fair value
Percentage of share in total revenue	77.00%	75.00%
Natural Resources
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	$ 107,300,000	$ 114,100,000
Foreign Exchange Options, Net | Significant Unobservable Inputs (Level 3)
Valuation techniques used for assets, measured at fair value
Assets, fair value (in dollars)	992,000	2,887,000
Foreign Exchange Options, Net | Significant Unobservable Inputs (Level 3) | Option pricing model | Weighted Average
Valuation techniques used for assets, measured at fair value
Forward and spot rates	10,301	11,500
Foreign Exchange Options, Net | Significant Unobservable Inputs (Level 3) | Option pricing model | Minimum
Valuation techniques used for assets, measured at fair value
Forward and spot rates	6	6
Foreign Exchange Options, Net | Significant Unobservable Inputs (Level 3) | Option pricing model | Maximum
Valuation techniques used for assets, measured at fair value
Forward and spot rates	$ 13,550	$ 14,000