Leases, Cost Recogized in Consolidated Statement of Operations (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Lease cost [Abstract]
Operating lease cost	$ 2,402,000	$ 6,287,000
Short-term lease cost	278,000	976,000
Variable lease cost	133,000	420,000
Finance lease cost: [Abstract]
Amortization of finance lease assets	448,000	1,178,000
Interest on finance lease liabilities	73,000	214,000
Total lease cost	$ 3,334,000	$ 9,075,000