Earnings per share - Schedule of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 24, 2022	Sep. 25, 2021
Basic earnings per share:
Net income attributable to Driven Brands Holdings Inc.	$ 38,391	$ 33,124	$ 15,790	$ 48,389
Less: Net income attributable to participating securities, basic	809	709	335	1,057
Net income after participating securities, basic	$ 37,583	$ 32,415	$ 15,455	$ 47,332
Weighted-average common shares outstanding (in shares)	162,760	162,635	162,768	160,030
Basic earnings per share (in dollars per share)	$ 0.23	$ 0.20	$ 0.10	$ 0.30
Diluted earnings per share:
Less: Net income attributable to participating securities, diluted	$ 721	$ 632	$ 299	$ 942
Net income after participating securities, diluted	$ 37,670	$ 32,492	$ 15,491	$ 47,447
Dilutive effect of share-based awards (in shares)	4,071	3,995	3,895	3,938
Weighted-average common shares outstanding, as adjusted (in shares)	166,831	166,630	166,663	163,968
Diluted earnings per share (in dollars per share)	$ 0.23	$ 0.19	$ 0.09	$ 0.29