Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease costs	$ 4,268	$ 12,567
Variable and short-term lease costs	1,830	5,089
Total lease costs	$ 6,098	$ 17,656