Balance Sheet Components - Schedule of Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2021	Apr. 30, 2021	Oct. 31, 2020
Balance Sheet Components [Abstract]
Accrued expenses	$ 22,865		$ 12,772
Value added taxes payable	5,936		8,493
Accrued interest on Senior Notes	7,511		0
Income taxes payable	2,083		1,596
Other	4,882		6,048
Total accrued expenses and other liabilities	$ 43,277	$ 28,909	$ 28,909