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Stock-Based Compensation (Tables) | 12 Months Ended
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Apr. 28, 2018
Stock-Based Compensation |
Summary of total stock-based compensation expense |
(Amounts in thousands) |  | (52 weeks) 4/28/2018 |  | (52 weeks) 4/29/2017 |  | (53 weeks) 4/30/2016 |
Equity-based awards expense |  | $ | 9,474 |  | $ | 8,864 |  | $ | 8,292 |
Liability-based awards expense |  | 405 |  | 1,687 |  | 1,355 |
Total stock-based compensation expense |  | $ | 9,879 |  | $ | 10,551 |  | $ | 9,647 |
Schedule of plan activity for stock options |
|  | Number of Shares (In Thousands) |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (In Thousands) |
Outstanding at April 29, 2017 |  | 1,509 |  | $ | 22.70 |  | 7.6 |  | $ | 7,638 |
Granted |  | 574 |  | 27.25 |  |  |  |  |
Canceled |  | (40 | ) | 26.58 |  |  |  |  |
Exercised |  | (206 | ) | 21.40 |  |  |  | $ | 2,152 |
Outstanding at April 28, 2018 |  | 1,837 |  | $ | 24.18 |  | 7.4 |  | $ | 9,407 |
Exercisable at April 28, 2018 |  | 732 |  | $ | 20.57 |  | 5.9 |  | $ | 6,388 |
Fair value assumptions for stock options |
|  | Fiscal 2018 Grant |  | Fiscal 2017 Grant |  | Fiscal 2016 Grant |
Risk-free interest rate |  | 1.84 | % | 1.30 | % | 1.54 | %
Dividend rate |  | 1.61 | % | 1.54 | % | 1.20 | %
Expected life in years |  | 5.0 |  | 5.0 |  | 5.0 |
Stock price volatility |  | 32.12 | % | 38.87 | % | 44.37 | %
Fair value per share |  | $ | 7.16 |  | $ | 7.99 |  | $ | 9.69 |
Fair value assumptions for SARs |
|  | Fiscal 2014 Grant |
Risk-free interest rate |  | 1.64 | %
Dividend rate |  | 1.64 | %
Expected life in years |  | 0.13 |
Stock price volatility |  | 18.79 | %
Fair value per share |  | $ | 10.22 |
Summary of information about non-vested share awards |
|  | Shares (In Thousands) |  | Weighted Average Grant Date Fair Value |
Non-vested shares at April 29, 2017 |  | 209 |  | $ | 25.72 |
Granted |  | 108 |  | 27.45 |
Vested |  | (69 | ) | 25.44 |
Canceled |  | (15 | ) | 26.36 |
Non-vested shares at April 28, 2018 |  | 233 |  | $ | 26.56 |
Summary of information about non-vested stock units |
|  | Units (In Thousands) |  | Weighted Average Grant Date Fair Value |
Non-vested units at April 29, 2017 |  | 23 |  | $ | 19.80 |
Vested |  | (23 | ) | 19.80 |
Non-vested units at April 28, 2018 |  | — |  | $ | — |
Summary of information about performance-based shares outstanding |
|  | Shares (In Thousands) |  | Weighted Average Grant Date Fair Value |
Outstanding shares at April 29, 2017 |  | 559 |  | $ | 24.87 |
Granted |  | 356 |  | 25.93 |
Vested |  | (89 | ) | 22.91 |
Unearned or cancelled |  | (285 | ) | 25.54 |
Outstanding shares at April 28, 2018 |  | 541 |  | $ | 25.52 |
Schedule of equity-based compensation expenses related to performance-based shares |
|  | (52 weeks) |  | (52 weeks) |  | (53 weeks) |
(Amounts in thousands) |  | 4/28/2018 |  | 4/29/2017 |  | 4/30/2016 |
Fiscal 2014 grant |  | $ | — |  | $ | — |  | $ | 926 |
Fiscal 2015 grant |  | — |  | 675 |  | 840 |
Fiscal 2016 grant |  | 1,052 |  | 1,284 |  | 1,610 |
Fiscal 2017 grant |  | 455 |  | 1,109 |  | — |
Fiscal 2018 grant |  | 887 |  | — |  | — |
Total expense |  | $ | 2,394 |  | $ | 3,068 |  | $ | 3,376 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock appreciation rights, including, but not limited to: (a) expected term of stock appreciation rights, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References No definition available. + Details
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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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