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Stock-Based Compensation - Plans and Expense (Details) - USD ($) $ in Thousands, shares in Millions | 12 Months Ended |
--- | --- | ---
Apr. 24, 2021 | Apr. 25, 2020 | Apr. 27, 2019 | Apr. 28, 2018
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Equity-based awards expense | $ 12,671 | $ 8,371 | $ 10,981 |
Liability-based awards expense | 1,878 | (982) | 339 |
Total stock-based compensation expense | 14,549 | 7,389 | 11,320 |
Stock options |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Equity-based awards expense | 2,959 | 2,000 | 3,507 |
Restricted stock awards |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Equity-based awards expense | 3,367 | 2,913 | 2,548 |
Stock appreciation rights |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Liability-based awards expense | 375 | (240) | 98 |
Restricted stock units |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Equity-based awards expense | 840 | 900 | 704 |
Liability-based awards expense | 43 | 20 | 22 |
Performance-based units |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Equity-based awards expense | 5,505 | 2,558 | 4,222 |
Liability-based awards expense | 23 | 6 | 7 |
Deferred stock units |  |  |  |
Stock-based compensation expense recognized for outstanding grants |  |  |  |
Liability-based awards expense | $ 1,437 | $ (768) | $ 212 |
2017 Omnibus Incentive Plan |  |  |  |
Stock-Based Compensation |  |  |  |
Aggregate number of common shares that may be issued through awards (in shares) |  |  |  | 5.9

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