Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Operating activities
Net income before attribution to noncontrolling interests	$ 60,614	$ 5,657	$ 4,073
Adjustments to reconcile net income to net cash provided by operating activities:
(Credit) provision for allowance for credit losses on accounts and notes receivable	(4,734)	3,139	6,849
Depreciation and amortization	49,705	47,281	46,403
Deferred income taxes	(9,268)	(3,764)	1,620
Preferred stock option mark-to-market adjustment		5,914
Stock-based compensation expense	16,310	15,303	9,936
(Gain) loss on refranchising		(4,739)	289
Other	2,257	3,203	5,677
Changes in operating assets and liabilities:
Accounts receivable	(22,420)	(6,181)	2,157
Income tax receivable	3,760	12,122	(12,157)
Inventories	(2,736)	(326)	3,093
Prepaid expenses and other current assets	2,884	1,367	3,795
Other assets and liabilities	20,879	(6,354)	1,464
Accounts payable	8,229	2,035	(400)
Income and other taxes payable	2,664	1,009	(3,971)
Accrued expenses and other current liabilities	59,353	(11,331)	21,753
Deferred revenue	(1,058)	(2,586)	1,873
Net cash provided by operating activities	186,439	61,749	92,454
Investing activities
Purchases of property and equipment	(35,652)	(37,711)	(42,028)
Notes issued	(16,589)	(15,864)	(10,463)
Repayments of notes issued	11,154	5,616	5,805
Proceeds from divestitures of restaurants		13,495	7,707
Other	16	1,889	180
Net cash used in investing activities	(41,071)	(32,575)	(38,799)
Financing activities
Repayments of term loan	(20,000)	(15,000)	(20,000)
Net (repayments) proceeds of revolving credit facilities		(240,026)	163,585
Debt issuance costs			(1,913)
Proceeds from exercise of stock options	30,622	16,010	2,699
Dividends paid to common stockholders	(29,362)	(28,552)	(28,985)
Dividends paid to preferred stockholders	(13,649)	(10,020)
Tax payments for equity award issuances	(3,974)	(1,433)	(1,521)
Acquisition of Company common stock	(2,701)		(158,049)
Proceeds from issuance of preferred stock		252,530
Issuance costs associated with preferred stock		(7,527)
Contributions from noncontrolling interests		840
Distributions to noncontrolling interests	(2,420)	(870)	(4,269)
Other	(1,977)	(526)	356
Net cash used in financing activities	(43,461)	(34,574)	(48,097)
Effect of exchange rate changes on cash and cash equivalents	386	53	(191)
Change in cash and cash equivalents	102,293	(5,347)	5,367
Cash and cash equivalents at beginning of period	27,911	33,258	27,891
Cash and cash equivalents at end of period	$ 130,204	$ 27,911	$ 33,258