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Stock-Based Compensation (Tables) | 6 Months Ended
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Jul. 15, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Allocation of Stock-Based Compensation Expense in Condensed Consolidated Statements of Earnings | Stock-based compensation expense recognized and included in “Selling, general and administrative expenses” in the condensed consolidated statements of earnings, and related tax benefits were as follows
| 12 Weeks Ended |  |  | 28 Weeks Ended |
| July 15, |  |  | July 16, |  |  | July 15, |  |  | July 16, |
(In thousands) | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Restricted stock | $ |  | 1,139 |  |  | $ |  | 1,043 |  |  | $ |  | 7,491 |  |  | $ |  | 6,067 |
Tax benefits |  |  | (427 | ) |  |  |  | (395 | ) |  |  |  | (2,810 | ) |  |  |  | (2,300 | )
Stock-based compensation expense, net of tax | $ |  | 712 |  |  | $ |  | 648 |  |  | $ |  | 4,681 |  |  | $ |  | 3,767 |
Summary of Stock-Based Compensation Activity | The following table summarizes activity in the stock-based compensation plans for the 28 weeks ended July 15, 2017:
|  |  |  |  |  |  |  |  |  |  |  |  |  | Weighted |
| Shares |  |  | Weighted |  |  | Restricted |  |  | Average |
| Under |  |  | Average |  |  | Stock |  |  | Grant-Date |
| Options |  |  | Exercise Price |  |  | Awards |  |  | Fair Value |
Outstanding at December 31, 2016 |  | 200,517 |  |  | $ |  | 19.94 |  |  |  | 660,143 |  |  | $ |  | 26.48 |
Granted |  | — |  |  |  |  | — |  |  |  | 292,205 |  |  |  |  | 34.82 |
Exercised/Vested |  | (152,589 | ) |  |  |  | 21.02 |  |  |  | (253,280 | ) |  |  |  | 25.85 |
Cancelled/Forfeited |  | — |  |  |  |  | — |  |  |  | (75,951 | ) |  |  |  | 29.03 |
Outstanding at July 15, 2017 |  | 47,928 |  |  | $ |  | 16.52 |  |  |  | 623,117 |  |  | $ |  | 30.34 |

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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 for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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