Stock-based Compensation - Summary of Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Apr. 30, 2022	Apr. 25, 2020
Number of Options
Beginning balance (in shares)	2,697,000
Granted (in shares)	290,000
Exercised (in shares)	(175,000)	0
Canceled (in shares)	(75,000)
Ending balance (in shares)	2,737,000
Vested or expected to vest at end of year (in shares)	2,727,000
Exercisable at end of year (in shares)	1,707,000
Weighted- Average Exercise Price
Beginning balance (in usd per share)	$ 28.31
Granted (in usd per share)	30.74
Exercised (in usd per share)	22.76
Canceled (in usd per share)	43.01
Ending balance (in usd per share)	28.52
Vested or expected to vest at end of year (in usd per share)	28.53
Exercisable at end of year (in usd per share)	$ 30.39
Aggregate Intrinsic Value
Balance at end of year	$ 15,615
Vested or expected to vest at end of year	15,557
Exercisable at end of year	$ 9,858

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Weighted average price of options that were either forfeited or expired.

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Net number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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