Segment Information - Schedule of Segment Results (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Segment Reporting Information [Line Items]
Revenue	$ 371,148	$ 267,762	$ 1,075,395	$ 615,692
Segment Adjusted EBITDA	98,628	69,084	278,094	141,455
Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	38,953	36,520	107,240	94,214
Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	213,755	140,788	603,808	323,339
Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	47,941	30,595	160,483	30,595
Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	19,762	14,927	56,665	42,429
Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	50,737	44,932	147,199	125,115
Operating Segments | Maintenance
Segment Reporting Information [Line Items]
Revenue	144,457	114,636	417,617	305,847
Segment Adjusted EBITDA	47,894	34,774	132,895	82,579
Operating Segments | Maintenance | Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	9,635	6,971	26,651	21,028
Operating Segments | Maintenance | Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	125,561	101,023	365,735	268,267
Operating Segments | Maintenance | Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Maintenance | Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Maintenance | Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	9,261	6,642	25,231	16,552
Operating Segments | Car Wash
Segment Reporting Information [Line Items]
Revenue	123,562	59,185	362,141	59,185
Segment Adjusted EBITDA	37,999	17,739	115,223	17,739
Operating Segments | Car Wash | Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Car Wash | Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	74,105	28,586	196,858	28,586
Operating Segments | Car Wash | Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	47,941	30,595	160,483	30,595
Operating Segments | Car Wash | Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Car Wash | Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	1,516	4	4,800	4
Operating Segments | Paint, Collision & Glass
Segment Reporting Information [Line Items]
Revenue	50,575	47,072	145,041	121,120
Segment Adjusted EBITDA	22,039	23,231	61,534	50,119
Operating Segments | Paint, Collision & Glass | Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	20,280	19,235	57,578	52,220
Operating Segments | Paint, Collision & Glass | Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	12,723	9,556	37,672	21,613
Operating Segments | Paint, Collision & Glass | Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Paint, Collision & Glass | Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Paint, Collision & Glass | Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	17,572	18,281	49,791	47,287
Operating Segments | Platform Services
Segment Reporting Information [Line Items]
Revenue	42,061	39,655	121,498	106,581
Segment Adjusted EBITDA	16,254	13,306	44,864	36,740
Operating Segments | Platform Services | Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	9,038	10,599	23,011	21,377
Operating Segments | Platform Services | Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	1,465	1,686	3,911	5,020
Operating Segments | Platform Services | Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Platform Services | Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Operating Segments | Platform Services | Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	31,558	27,370	94,576	80,184
Corporate and Other
Segment Reporting Information [Line Items]
Revenue	10,493	7,214	29,098	22,959
Segment Adjusted EBITDA	(25,558)	(19,966)	(76,422)	(45,722)
Corporate and Other | Franchise royalties and fees
Segment Reporting Information [Line Items]
Revenue	0	(285)	0	(411)
Corporate and Other | Company-operated store sales
Segment Reporting Information [Line Items]
Revenue	(99)	(63)	(368)	(147)
Corporate and Other | Independently-operated store sales
Segment Reporting Information [Line Items]
Revenue	0	0	0	0
Corporate and Other | Advertising fund contributions
Segment Reporting Information [Line Items]
Revenue	19,762	14,927	56,665	42,429
Corporate and Other | Supply and other revenue
Segment Reporting Information [Line Items]
Revenue	$ (9,170)	$ (7,365)	$ (27,199)	$ (18,912)