Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Operating leases	$ 14,337	$ 13,453
Finance leases	47	12
Cash paid for amounts included in the measurement of lease liabilities	14,384	13,465
Non-cash Investing Activities:
Property, equipment and intangibles purchased in accounts payable	3,012	8,130
Property, equipment and intangibles purchased for debt	4,010	9,683
Customer accounts receivable converted to notes receivable	0	66
Cash Financing Activities:
Borrowings on long-term debt	100,075	115,027
Payments of long-term debt	(5,080)	(7,706)
Change in long-term debt	94,995	107,321
Cash paid for amounts included in the measurement of finance lease liabilities	328	52
Non-cash Financing Activities:
Prepaid insurance funded through short-term debt borrowings	0	1,189
Prepaid ERP costs funded through short-term debt borrowings	0	1,430
Shares surrendered for tax obligations for employee share-based transactions in accrued liabilities	0	30
Accounts payable converted to installment notes	914	286
Other Supplemental Cash Flow Information:
Cash taxes paid, net of refunds	5,767	5,881
Cash interest paid	1,837	7,902
Leased assets obtained in exchange for new finance lease liabilities	544	16
Leased assets obtained in exchange for new operating lease liabilities	$ 6,339	$ 4,886