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Income Taxes - Phantom (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Feb. 28, 2015 | Mar. 01, 2014 | Feb. 28, 2015 | Mar. 01, 2014
Income Tax Disclosure [Abstract] |  |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | $ 0.2 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | $ 0 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | $ 0.3 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | $ 0 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense

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- Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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