Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 221,671	$ 223,709
Less: accumulated depreciation and amortization	(148,239)	(132,401)
Total property and equipment, net	73,432	91,308
Computers, software, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	14,430	14,270
Site operation equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	75,267	87,479
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	5,772	5,758
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	49,717	49,751
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 76,485	$ 66,451