Leases - Summary of Components of Operating Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease costs	$ 2,118	$ 2,469	$ 6,302	$ 7,146
Short-term lease costs	6	17	19	110
Variable lease costs	568	181	1,154	518
Less: Sublease income	(124)	(43)	(372)	(99)
Total operating lease costs	$ 2,568	$ 2,624	$ 7,103	$ 7,675