Revenue Recognition - Schedule of Disaggregated Revenue by Major Business Line (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Disaggregation Of Revenue [Table]
Total revenue	$ 252,585	$ 164,850
U S [Member]
Disaggregation Of Revenue [Table]
Total revenue	207,143	134,725
Europe [Member]
Disaggregation Of Revenue [Table]
Total revenue	32,237	19,658
Japan [Member]
Disaggregation Of Revenue [Table]
Total revenue	11,284	8,985
Other international [Member]
Disaggregation Of Revenue [Table]
Total revenue	1,921	1,482
Product
Disaggregation Of Revenue [Table]
Total revenue	241,474	155,417
Service and Other
Disaggregation Of Revenue [Table]
Total revenue	$ 11,111	$ 9,433