Credit Losses (Tables)

9 Months Ended

Jan. 31, 2022

Credit Loss [Abstract]

Summary of Activity in Allowance for Credit Losses on Trade Receivables

The activity in the allowance for credit losses on the Company's trade receivables is as follows:

	(in thousands)
Balance at April 30, 2021	$	29,324
Provision for credit losses		15,029
Write-offs		(9,713	)
Recoveries of amounts previously written off		645
Foreign currency translation		(668	)
Balance at January 31, 2022	$	34,617

Schedule of Fair Value and Unrealized Losses on Available for Sale Debt Securities

The fair value and unrealized losses on available for sale debt securities, aggregated by investment category and the length of time the security has been in an unrealized loss position, are as follows:

	Less Than 12 Months				Balance Sheet Classification
Balance at January 31, 2022	Fair Value		Unrealized Loss		Cash and Cash Equivalent		Marketable Securities, Current		Marketable Securities, Non- Current
	(in thousands)
Commercial paper	$	32,373	$	34	$	1,999	$	30,374	$	—
Corporate notes/bonds	$	39,780	$	171	$	—	$	24,381	$	15,399

	Less Than 12 Months				Balance Sheet Classification
Balance at April 30, 2021	Fair Value		Unrealized Loss		Cash and Cash Equivalent		Marketable Securities, Current		Marketable Securities, Non- Current
	(in thousands)
Commercial paper	$	36,378	$	7	$	5,749	$	30,629	$	—
Corporate notes/bonds	$	26,350	$	20	$	—	$	10,133	$	16,217