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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands | 9 Months Ended
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Sep. 26, 2018 | Sep. 27, 2017
Supplemental Cash Flow Information [Abstract] |  |
Income taxes paid, net | $ 2,347 | $ 5,039
Interest paid | 14,349 | 10,547
Noncash investing and financing activities: |  |
Property acquisition payable | 0 | 500
Insurance proceeds receivable | 19 | 0
Issuance of common stock, pursuant to share-based compensation plans | 4,671 | 4,961
Execution of capital leases | 2,850 | 4,959
Treasury stock payable | 419 | 741
Notes received in connection with disposition of property | $ 0 | $ 1,750

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