SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2015
Condensed Cash Flow Statements, Captions [Line Items]
Cash interest paid	$ 8,321	$ 6,571
Accrued dividends on preferred stock	89		$ 89
Class A common stock
Condensed Cash Flow Statements, Captions [Line Items]
Issuance of Class A common stock for payment of preferred stock dividends	178	178
Issuance of Class A common stock in connection with Second Secured Lien Notes	365	0
Accrued issuance of Class A common stock	341	0
Second Secured Lien Notes | Class A common stock
Condensed Cash Flow Statements, Captions [Line Items]
Issuance of warrants in connection with Second Secured Lien Notes	$ 107	$ 0