Revenue Recognition - Schedule of Disaggregated Revenue by Major Business Line (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Table]
Total revenue	$ 231,663	$ 221,584	$ 606,277	$ 634,225
U.S.
Disaggregation Of Revenue [Table]
Total revenue	189,116	185,569	495,988	533,070
International
Disaggregation Of Revenue [Table]
Total revenue	42,547	36,015	110,289	101,155
Product
Disaggregation Of Revenue [Table]
Total revenue	220,883	212,626	575,977	609,430
Service and Other
Disaggregation Of Revenue [Table]
Total revenue	$ 10,780	$ 8,958	$ 30,300	$ 24,795