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Stock-Based Compensation - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 24, 2021 | Apr. 30, 2022 | Apr. 24, 2021 | Apr. 25, 2020
Minimum |  |  |  |
Stock-Based Compensation |  |  |  |
Vesting period |  | 1 year |  |
Maximum |  |  |  |
Stock-Based Compensation |  |  |  |
Vesting period |  | 4 years |  |
Stock options |  |  |  |
Stock-Based Compensation |  |  |  |
Vesting period |  | 10 months |  |
Number of Shares |  |  |  |
Outstanding at beginning of period (in shares) | 1,342,000 | 1,342,000 |  |
Granted (in shares) | 252,996 | 253,000 |  |
Canceled (in shares) |  | (41,000) |  |
Exercised (in shares) |  | (38,000) |  |
Outstanding at end of period (in shares) |  | 1,516,000 | 1,342,000 |
Exercisable (in shares) |  | 1,042,000 |  |
Weighted Average Exercise Price |  |  |  |
Outstanding at beginning of period (in dollars per share) | $ 29.05 | $ 29.05 |  |
Granted (in dollars per share) |  | 37.93 |  |
Canceled (in dollars per share) |  | 29.92 |  |
Exercised (in dollars per share) |  | 29.32 |  |
Outstanding at end of period (in dollars per share) |  | 30.51 | $ 29.05 |
Exercisable (in dollars per share) |  | $ 28.97 |  |
Additional information |  |  |  |
Weighted Average Remaining Contractual Term, Outstanding |  | 6 years 7 months 6 days | 7 years 2 months 12 days |
Weighted Average Remaining Contractual Term, Exercisable |  | 5 years 9 months 18 days |  |
Aggregate Intrinsic Value, Outstanding |  | $ 24 | $ 19,008 |
Aggregate Intrinsic Value, Exercised |  | 252 | 5,100 | $ 1,700
Aggregate Intrinsic Value, Exercisable |  | 24 |  |
Unrecognized compensation cost |  | $ 2,300 |  |
Period for recognition of unrecognized compensation costs |  | 1 year 9 months 18 days |  |
Vested during the period (in shares) |  | 400,000 |  |
Cash received for exercises of stock options |  | $ 1,100 | $ 10,800 | $ 4,800
Fair value assumptions |  |  |  |
Risk-free interest rate |  | 0.82% | 0.34% | 2.19%
Dividend rate |  | 1.58% | 0.00% | 1.72%
Expected life |  | 5 years | 5 years | 5 years
Stock price volatility (as a percent) |  | 42.16% | 41.79% | 34.27%
Fair value per share (in dollars per share) |  | $ 12.29 | $ 10.06 | $ 7.94
Stock options | Former Long-Term Equity Award Plan |  |  |  |
Stock-Based Compensation |  |  |  |
Award expiration term |  | 10 years |  |
Stock options | Minimum |  |  |  |
Stock-Based Compensation |  |  |  |
Purchase price of common stock at date of grant (less than) (as a percent) |  | 100.00% |  |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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