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Stock-Based Compensation - Schedule of Pre-Tax Compensation Expense and Related Tax Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
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May 28, 2016 | May 30, 2015 | May 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | $ 11.9 | $ 10.0 | $ 11.0
Tax benefit | 4.3 | 3.6 | 4.0
Employee Stock Purchase Program |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | 0.3 | 0.3 | 0.3
Stock Option Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | 1.9 | 2.6 | 2.3
Restricted Stock Grants |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | 0.0 | 0.1 | 0.2
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | 3.2 | 3.7 | 5.2
Performance Share Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |
Stock-based compensation | $ 6.5 | $ 3.3 | $ 3.0

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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + 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)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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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. + References No definition available. + Details
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