Earnings (loss) per share - Schedule of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Basic earnings per share:
Net income (loss) attributable to Driven Brands Holdings Inc.	$ (57,044)	$ 35,204	$ (22,601)	$ 15,265
Less: Net income attributable to participating securities, basic	(1,210)	755	(481)	337
Net income after participating securities, basic	$ (55,834)	$ 34,449	$ (22,120)	$ 14,928
Weighted-average common shares outstanding (in shares)	162,781	162,626	162,772	158,727
Basic earnings (loss) per share (in dollars per share)	$ (0.34)	$ 0.21	$ (0.14)	$ 0.09
Diluted earnings (loss) per share:
Less: Net income attributable to participating securities, diluted	$ (1,080)	$ 673	$ (430)	$ 300
Net income after participating securities, diluted	$ (55,964)	$ 34,531	$ (22,171)	$ 14,965
Dilutive effect of share-based awards (in shares)	0	3,886	0	3,544
Weighted-average common shares outstanding, as adjusted (in shares)	162,781	166,512	162,772	162,271
Diluted earnings (loss) per share (in dollars per share)	$ (0.34)	$ 0.21	$ (0.14)	$ 0.09