Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (28,923)	$ (20,461)	$ 53,066
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Gain (Loss) on Extinguishment of Debt	2,242	0	0
Depreciation and amortization	97,629	100,720	109,771
Deferred income taxes	(14,510)	(8,182)	(71,875)
Stock-based compensation expense	2,435	324	606
Amortization of lease-related liabilities	0	(993)	(632)
Amortization of original issue discount and deferred financing costs	5,487	4,344	4,546
Payment for Debt Extinguishment or Debt Prepayment Cost	694	0	0
Loss on asset disposals, net	3,610	3,436	7,398
Asset impairments	23,333	6,935	1,843
Non-cash rent expenses	2,935	5,372	4,884
IncreaseDecreaseinLeaseRelatedLiabilities	1,602	0	0
Other adjustments	(107)	768	322
Changes in operating assets and liabilities:
Accounts receivable	(2,420)	(4,532)	(809)
Inventories	(4,272)	(1,833)	(3,964)
Prepaid expenses	(772)	(686)	3,173
Accounts payable	877	(2,172)	3,110
Accrued expenses	424	2,534	(4,744)
Unearned revenues	4,808	(2,917)	5,647
Accrued interest	4,660	(569)	(70)
Income taxes (receivable) payable	11,410	2,107	(9,554)
Deferred landlord contributions	0	2,595	1,579
Net cash provided by operating activities	111,142	86,790	104,297
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(87,018)	(77,088)	(90,958)
Development of internal use software	(770)	(2,756)	(3,243)
Proceeds from sale of property and equipment	204	560	489
Net cash used in investing activities	(87,584)	(79,284)	(93,712)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from refinancing of senior term loan	479,449	0	0
Repayments on senior term loan	(473,749)	(7,600)	(7,600)
Repurchase of Senior Notes	(38,337)	0	0
Repayments on note payable	0	0	(13)
Proceeds from sale leaseback transaction	0	0	4,073
Payment of debt financing costs	(15,375)	(442)	0
Payments on finance lease obligations	(697)	(595)	(467)
Payments on sale leaseback obligations	(3,379)	(2,910)	(2,470)
Return of capital	0	0	1,447
Net cash used in financing activities	(52,088)	(11,547)	(5,030)
Effect of foreign exchange rate changes on cash	(2)	50	466
Change in cash, cash equivalents and restricted cash	(28,532)	(3,991)	6,021
Cash, cash equivalents and restricted cash at end of period	34,771	63,170
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid (refunded) for income taxes, net	(7,264)	1,054	7,136
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	26,318	0	0
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Accrued construction costs	939	2,402	1,007
Restricted Cash and Cash Equivalents, Current	18	151
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	34,789	63,321	67,312
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 77,315	$ 72,966	$ 64,675