Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Cash Flows from Operating Activities:
Net income	$ 56,663	$ 65,044	$ 36,082
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	111,613	78,096	60,397
Amortization of intangibles	5,010	2,800	733
Deferred income taxes	42,942	10,408	4,220
Loss on sale of property, plant and equipment	2,892	1,268	677
Impairment of property, plant and equipment	382	148
Gain (loss) on exchange of franchise territory	692	(8,807)
Gain on sale of business		(22,651)
Bargain purchase gain		(2,011)
Amortization of debt costs	1,855	2,011	1,938
Stock compensation expense	7,154	7,300	3,542
Fair value adjustment of acquisition related contingent consideration	(1,910)	3,576	1,077
Change in current assets less current liabilities (exclusive of acquisition)	(39,909)	(18,262)	(16,331)
Change in other noncurrent assets (exclusive of acquisition)	(14,564)	(4,292)	(3,195)
Change in other noncurrent liabilities (exclusive of acquisition)	(10,850)	(6,214)	3,333
Other	25	(124)	(570)
Total adjustments	105,332	43,246	55,821
Net cash provided by operating activities	161,995	108,290	91,903
Cash Flows from Investing Activities:
Additions to property, plant and equipment (exclusive of acquisition)	(172,586)	(163,887)	(84,364)
Proceeds from the sale of property, plant and equipment	1,072	1,891	1,701
Proceeds from the sale of BYB Brands, Inc.		26,360
Investment in CONA Services LLC	(7,875)
Acquisition of Expansion Territories, net of cash acquired	(272,637)	(81,707)	(41,588)
Net cash used in investing activities	(452,026)	(217,343)	(124,251)
Cash Flows from Financing Activities:
Borrowings under Senior Notes, net of discount		349,913
Borrowings under Term Loan Facility	300,000
Borrowing under Revolving Credit Facility	410,000	334,000	191,624
Payment of Revolving Credit Facility	(258,000)	(405,000)	(125,624)
Payment of Senior Notes	(164,757)	(100,000)
Repayment of Lines of Credit			(20,000)
Cash dividends paid	(9,307)	(9,287)	(9,266)
Excess tax expense (benefit) from stock-based compensation			176
Payment of acquisition related contingent consideration	(13,550)	(4,039)	(212)
Principal payments on capital lease obligations	(7,063)	(6,555)	(5,939)
Other	(940)	(3,576)	(1,077)
Net cash provided by financing activities	256,383	155,456	29,682
Net increase (decrease) in cash	(33,648)	46,403	(2,666)
Cash at beginning of year	55,498	9,095	11,761
Cash at end of year	21,850	55,498	9,095
Significant noncash investing and financing activities:
Capital lease obligations incurred		3,361
Additions to property, plant and equipment accrued and recorded in accounts payable, trade	15,704	14,006	9,185
Class B Common Stock [Member]
Significant noncash investing and financing activities:
Issuance of Class B Common Stock in connection with stock award	$ 3,726	$ 2,225	$ 1,763