Contingencies	9 Months Ended
	Jan. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Contingencies	ContingenciesWe generally indemnify our customers against damages and costs resulting from third-party claims of patent, copyright or trademark infringement associated with use of our products. Historically, we have not been required to make any payments under such indemnifications. However, we continue to monitor the conditions that are subject to indemnification to identify whether it is probable that a loss has occurred, and would recognize any such losses when those losses are estimable. In addition, we warrant to our customers that our software products operate substantially in accordance with their documentation. Historically, we have incurred no costs related to software product warranties and we do not expect to incur such costs in the future, and as such we have made no accruals for software product warranty costs. Additionally, we are involved in various claims arising in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on our financial position or results of operations.