Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 214,662	$ 216,916
Less: accumulated depreciation and amortization	(149,161)	(148,548)
Total property and equipment, net	65,501	68,368
Computers, software, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	15,197	13,854
Site operation equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	60,358	67,726
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	5,772	5,772
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	49,754	49,756
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 83,581	$ 79,808