CORPORATE LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 8) - Predecessor Company	4 Months Ended
	Apr. 30, 2014 USD ($) issuer loan
Troubled debt restructurings:
Sustained period of repayment performance for determining the reclassification of restructured loans from non-accrual to accrual status (in months)	6 months
Pre-modification outstanding recorded investment	$ 195,400,000
Number of issuers troubled debt restructurings | issuer	2
Higher coupon rate for extended period (as a percent)	4.00%
Charge-offs recorded related to TDR's	$ 1,100,000
Charge-offs related to TDR's as a percentage of charge-offs related to loans and losses (as a percent)	76.00%
Charge-offs recorded	$ 1,500,000
Lending commitment to borrower whose loans had been modified in the troubled debt restructuring	$ 0
Number of loans modified as TDRs in default | loan	0
Modified amortized cost of corporate loans that did not qualify as TDRs	$ 1,100,000,000
Minimum
Troubled debt restructurings:
Financing receivable modifications extension period of maturity date (in years)	3 years
Maximum
Troubled debt restructurings:
Financing receivable modifications extension period of maturity date (in years)	5 years
Corporate Loans
Troubled debt restructurings:
Number of TDRs identified as impaired (in issuers) | loan	1
Corporate Loan Portfolio Segment
Troubled debt restructurings:
Pre-modification outstanding recorded investment	$ 195,422,000
Post-modification outstanding recorded investment	$ 24,571,000
Number of issuers troubled debt restructurings | issuer	2
Corporate Loan Portfolio Segment | Corporate Loans
Troubled debt restructurings:
Number of TDRs (loans) | loan	1
Pre-modification outstanding recorded investment	$ 154,075,000
Post-modification outstanding recorded investment	0
Estimated fair value of equity received from the TDRs excluded from post-modification outstanding recorded investment	92,000,000
Charge-offs recorded	$ 1,458,000
Corporate Loan Portfolio Segment | Corporate loans, at estimated fair value
Troubled debt restructurings:
Number of TDRs (loans) | loan	2
Pre-modification outstanding recorded investment	$ 41,347,000
Post-modification outstanding recorded investment	24,571,000
Estimated fair value of equity received from the TDRs excluded from post-modification outstanding recorded investment	$ 12,300,000
Number of loans carried at estimated fair value | loan	2