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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2019	Dec. 26, 2018	Dec. 27, 2017
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 24,147	$ 3,254	$ 6,367
Interest paid	17,792	19,447	14,636
Noncash investing and financing activities:
Noncash consideration received in connection with the sale of real estate	3,000	0	0
Notes received in connection with disposition of property	920	0	1,750
Property acquisition payable	0	0	500
Accrued purchase of property	1,791	178	531
Insurance proceeds receivable	48	653	364
Issuance of common stock, pursuant to share-based compensation plans	7,522	4,671	4,961
Execution of finance leases	305
Execution of finance leases		3,623	6,573
Treasury stock payable	$ 1,816	$ 72	$ 120

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