Percentage Of Fair Market Value Of Common Stock

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Period Of Vesting Of Restrictions On Restricted Stock Issued

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount, after tax, of expense for award under share-based payment arrangement.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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

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- Definition

Number of shares issued under share-based payment arrangement.

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- Definition

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

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Percentage of vesting of award under share-based payment arrangement.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jun. 29, 2018	Apr. 24, 2021	Apr. 25, 2020	Apr. 27, 2019	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense recognized		$ 21,223	$ 22,935	$ 19,685
After-tax stock-based compensation expense		16,387	$ 17,789	15,588
Compensation cost before income taxes related to non-vested awards yet to be recognized		$ 23,830
Total compensation cost expected to be recognized over a weighted average period		1 year 4 months 24 days
Number of shares outstanding (in shares)		2,697,000	2,433,000
Granted (in usd per share)		$ 23.57
Weighted average remaining contractual lives of options outstanding		7 years 4 months 24 days
Weighted average remaining contractual lives of options exercisable		6 years 2 months 12 days
Stock options exercised, intrinsic value		$ 953		2
Stock options exercised, cash received		3,399		13
Stock options exercised, tax benefit		$ 129		0
Inducement Awards \| First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage		33.00%
Inducement Awards \| Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage		33.00%
Inducement Awards \| Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage		33.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance units vested		418,000
Restricted Stock Units \| First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage	50.00%
Restricted Stock Units \| Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting, percentage	50.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period		10 years
Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance units vested		133,000
Chief Executive Officer \| Inducement Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in share)	99,000
Granted (in usd per share)	$ 22.67
Expiration period	10 years
Chief Executive Officer \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in share)	31,000
Minimum \| Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Maximum \| Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
2015 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance (in shares)					11,500,000
Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for awards (in shares)		3,832,000
Prior Equity Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares outstanding (in shares)		382,000
Restricted Stock And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted stock awards vested in period		$ 11,672	$ 8,788	$ 5,683
Restricted Stock And Restricted Stock Units \| First Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock vesting period		3 years
Restricted Stock And Restricted Stock Units \| Second Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock vesting period		5 years
Restricted Stock And Restricted Stock Units \| Third Anniversary
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock vesting period		7 years
Restricted Stock And Restricted Stock Units \| Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock vesting period		3 years
Restricted Stock And Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum restriction period for restricted stock and restricted stock units		1 year
Total Shareholder Return \| Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock vesting period		3 years	3 years	3 years
Number of performance units vested		4,227,000	4,227,000	4,227,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance (in shares)		9,000,000
Number of shares available for awards (in shares)		1,734,000
Percentage of fair market value of the common stock		85.00%