Leases - Summary of Components of Lease Expense (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease expense	$ 3,832,000	$ 11,270,000
Short-term lease expense	131,000	182,000
Variable lease expense	36,000	82,000
Lease expense	$ 3,999,000	$ 11,534,000