CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 25, 2022	Mar. 26, 2022	Jun. 26, 2021	Mar. 27, 2021	Jun. 25, 2022	Jun. 26, 2021	Dec. 25, 2021
Statement of Cash Flows [Abstract]
Net income (loss)	$ (57,044)	$ 34,428	$ 35,168	$ (19,932)	$ (22,616)	$ 15,235
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	38,087		26,423		71,110	50,275
Trade name impairment	125,450		0		125,450	0
Non-cash lease cost					35,049	37,938
Loss on foreign denominated transactions					14,908	5,707
Gain on foreign currency derivatives					0	(425)
Bad debt expense					936	1,739
Asset impairment costs					16	3,431
Amortization of deferred financing costs and bond discounts					4,565	3,619
Benefit (provision) for deferred income taxes					(31,908)	4,742
Loss on extinguishment of debt	0		78		0	45,576
Other, net					(1,925)	1,375
Changes in assets and liabilities, net of acquisitions:
Accounts and notes receivable, net					(61,461)	(24,174)
Inventory					(6,899)	(396)
Prepaid and other assets					(19,082)	(20,885)
Advertising fund assets and liabilities, restricted					(1,321)	12,548
Deferred commissions					(178)	(809)
Deferred revenue					497	2,994
Accounts payable					20,209	3,860
Accrued expenses and other liabilities					(45,950)	9,707
Income tax receivable					19,640	3,665
Operating lease liabilities					(25,651)	(31,034)
Cash provided by operating activities					75,389	124,688
Cash flows from investing activities:
Capital expenditures					(148,763)	(46,222)
Cash used in business acquisitions, net of cash acquired					(394,388)	(205,556)
Proceeds from sale-leaseback transactions					56,083	49,166
Proceeds from sale of company-operated stores					0	5,775
Proceeds from disposition of car wash operations					1,551	0
Proceeds from disposal of property and equipment					632	0
Cash used in investing activities					(484,885)	(196,837)
Cash flows from financing activities:
Payment of debt extinguishment and issuance costs					0	(2,408)
Repayment of long-term debt					(9,682)	(712,649)
Proceeds from revolving lines of credit and short-term debt					105,000	213,800
Repayments of revolving lines of credit and short-term debt					0	(152,800)
Repayment of principal portion of finance lease liability					(1,156)	(1,127)
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	(43,040)
Payment for termination of interest rate swaps					0	(21,826)
Stock option exercises					188	0
Other, net					(36)	152
Cash provided by financing activities					94,314	40,827
Effect of exchange rate changes on cash					(4,454)	1,813
Net change in cash, cash equivalents, restricted cash, and cash included in advertising fund assets, restricted					(319,636)	(29,509)
Cash and cash equivalents, beginning of period		523,414		172,611	523,414	172,611	$ 172,611
Cash included in advertising fund assets, restricted, beginning of period		38,586		19,369	38,586	19,369	19,369
Restricted cash, beginning of period		792		15,827	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	562,792	207,807	207,807
Cash and cash equivalents, end of period	197,853		147,257		197,853	147,257	523,414
Cash included in advertising fund assets, restricted, end of period	44,511		30,882		44,511	30,882	38,586
Restricted cash, end of period	792		159		792	159	792
Cash, cash equivalents, restricted cash, and cash included in advertising fund assets, restricted, end of period	$ 243,156		$ 178,298		243,156	178,298	$ 562,792
Supplemental cash flow disclosures - non-cash items:
Accrued capital expenditures, end of period					5,464	5,772
Supplemental cash flow disclosures - cash paid for:
Interest					51,491	38,966
Income taxes					$ 5,457	$ 5,531