Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 28, 2016	Jun. 30, 2015
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 8,930	$ 5,047
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	33,753	31,079
Amortization of debt issuance costs	2,178	1,961
Deferred income taxes	(3,633)	(4,989)
Net facility impairment and closure costs	2,574	4,677
Other	(258)	473
Changes in assets and liabilities, excluding the effect of acquisitions:
Accounts receivable	2,664	3,291
Inventories	396	159
Prepaid expenses and other current assets	895	1,844
Accounts payable	(493)	1,435
Income taxes	2,518	3,180
Accrued interest	750	(1,654)
Accrued liabilities	2,510	1,365
Insurance reserves	987	1,256
Other deferred items	(1,290)	47
Other assets	(138)	(122)
Net cash provided by operating activities	52,343	49,049
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures	(25,393)	(26,466)
Acquisition of Wendy’s business, net of cash acquired	(7,963)	0
Proceeds from sale-leaseback transactions	7,155	1,408
Proceeds from sale or disposition of assets	947	548
Net cash used in investing activities	(25,254)	(24,510)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Borrowings under revolving credit facility	0	59,000
Payments under revolving credit facility	0	(59,000)
Payments on term bank facilities	(4,326)	(3,119)
Net cash used in financing activities	(4,326)	(3,119)
Net change in cash and cash equivalents	22,763	21,420
Beginning cash and cash equivalents	32,717	12,063
Ending cash and cash equivalents	55,480	33,483
Supplemental Cash Flow Information [Abstract]
Net cash paid for interest	19,601	20,571
Net cash paid for income taxes	145	1,345
Non-Cash Investing Activities [Abstract]
Accrued capital expenditures	$ 4,900	$ 3,229