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Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 27, 2019
Mar. 28, 2018
Supplemental Cash Flow Information [Abstract]    
Income taxes paid, net $ 367 $ 423
Interest paid 5,067 4,272
Noncash investing and financing activities:    
Issuance of common stock, pursuant to share-based compensation plans 6,333 3,513
Noncash consideration received in connection with the sale of real estate 3,000 0
Execution of finance leases 0 2,478
Treasury stock payable $ 925 $ 615