Common Stock and Stockholders' Equity - Summary of Stock-Based Compensation Expense (Detail) - USD ($)	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 34,882,000	$ 42,187,000
Restructuring charges		12,600,000
Stock-Based Compensation
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Restructuring charges	0	500,000
Executive officer
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Acceleration of share-based payment expense	0	9,600,000
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	1,344,000	1,072,000
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	13,286,000	10,964,000
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	10,583,000	11,534,000
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 9,669,000	$ 18,617,000