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Balance Sheet Components - Schedule of Accrued Expenses and Other Liabilities (Details) - USD ($)
$ in Thousands
Oct. 31, 2020
Apr. 30, 2020
Balance Sheet Components [Abstract]    
Accrued expenses $ 11,796 $ 10,864
Value added taxes payable 5,649 7,230
Other 4,379 4,116
Total accrued expenses and other liabilities $ 21,824 $ 22,210