BUSINESS REORGANIZATION (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (246,000)	$ (5,930,000)	$ 467,000	$ (6,172,000)
Payments related to reorganization activities	0		0
Fiscal 2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(246,000)		467,000
Fiscal 2018 Plan | Accrued Expenses and Other Current Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	3,747,000		3,747,000
Fiscal 2018 Plan | Other long-term liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 2,991,000		$ 2,991,000
A 2016 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges					$ 71,285,000
Restructuring benefit		$ (5,930,000)		$ (5,930,000)