SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash interest paid	$ 1,716	$ 2,310
Accrued dividends on preferred stock	89	89
Right-of-use assets and operating lease liability recorded upon adoption of ASU 842, net	90
Class A common stock
Condensed Cash Flow Statements, Captions [Line Items]
Issuance of Class A common stock for payment of preferred stock dividends	$ 89	$ 89