CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 26, 2022	Mar. 27, 2021	Dec. 25, 2021
Statement of Cash Flows [Abstract]
Net income (loss)	$ 34,428	$ (19,932)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	33,023	23,852
Non-cash lease cost	17,002	20,028
Loss on foreign denominated transactions	970	13,000
Gain on foreign currency derivative	0	(2,489)
Bad debt expense	372	657
Asset impairment costs	898	1,253
Amortization of deferred financing costs and bond discounts	2,224	2,139
Benefit (provision) for deferred income taxes	132	(8,018)
Loss on extinguishment of debt	0	45,498
Other, net	1,597	(749)
Changes in assets and liabilities, net of acquisitions:
Accounts and notes receivable, net	(21,123)	(19,693)
Inventory	(1,787)	135
Prepaid and other assets	397	(8,184)
Advertising fund assets and liabilities, restricted	(1,204)	2,621
Deferred commissions	(39)	(573)
Deferred revenue	455	1,551
Accounts payable	509	638
Accrued expenses and other liabilities	(61,624)	(6,451)
Income tax receivable	11,476	3,061
Operating lease liabilities	(8,666)	(15,758)
Cash provided by operating activities	9,040	32,586
Cash flows from investing activities:
Capital expenditures	(68,967)	(23,280)
Cash used in business acquisitions, net of cash acquired	(224,526)	(26,732)
Proceeds from sale-leaseback transactions	37,781	41,023
Proceeds from sale of company-operated stores	0	4,481
Proceeds from disposition of car wash operations	1,577	0
Proceeds from disposal of property and equipment	803	0
Cash used in investing activities	(253,332)	(4,508)
Cash flows from financing activities:
Repayment of long-term debt	(4,820)	(707,384)
Proceeds from revolving lines of credit and short-term debt	0	114,800
Repayments of revolving lines of credit and short-term debt	0	(132,800)
Repayment of principal portion of finance lease liability	(879)	(409)
Proceeds from initial public offering, net of underwriting discounts	0	661,500
Net proceeds from underwriters' exercise of over-allotment option	0	99,225
Repurchases of common stock	0	(42,977)
Payment for termination of interest rate swaps	0	(21,826)
Other, net	(20)	0
Cash provided by financing activities	(5,719)	(29,871)
Effect of exchange rate changes on cash	(592)	650
Net change in cash, cash equivalents, restricted cash, and cash included in advertising fund assets, restricted	(250,603)	(1,143)
Cash and cash equivalents, beginning of period	523,414	172,611	$ 172,611
Cash included in advertising fund assets, restricted, beginning of period	38,586	19,369	19,369
Restricted cash, beginning of period	792	15,827	15,827
Cash, cash equivalents, restricted cash, and cash included in advertising fund assets, restricted, beginning of period	562,792	207,807	207,807
Cash and cash equivalents, end of period	270,681	175,371	523,414
Cash included in advertising fund assets, restricted, end of period	40,716	21,160	38,586
Restricted cash, end of period	792	10,133	792
Cash, cash equivalents, restricted cash, and cash included in advertising fund assets, restricted, end of period	312,189	206,664	$ 562,792
Supplemental cash flow disclosures - non-cash items:
Accrued capital expenditures, end of period	2,940	3,804
Supplemental cash flow disclosures - cash paid for:
Interest	24,238	16,424
Income taxes	$ 321	$ 1,373