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Commitments and Contingent Liabilities (Details Textual) $ in Millions | Sep. 02, 2017 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Company's backlog bonded by performance bonds | $ 63.7
Face value of performance bonds | 293.6
Line of Credit Facility [Line Items] |
Purchase obligations | 110.0
Industrial Revenue Bonds |
Line of Credit Facility [Line Items] |
Debt | 20.4
Letter of credit | Industrial Revenue Bonds |
Line of Credit Facility [Line Items] |
Debt | $ 24.9

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