Acquisitions - Schedule of Finite-lived Intangible Assets and Range of Estimated Amortization Periods (Details) - USD ($) $ in Thousands	Jan. 03, 2020	Sep. 30, 2021	Dec. 31, 2020
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Value as of acquisition date		$ 143,300	$ 143,300
Software licensing
Acquired Finite-Lived Intangible Assets [Line Items]
Value as of acquisition date		9,940	9,940
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Value as of acquisition date		$ 15,550	$ 15,550
Smart AutoCare
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)	7 years 8 months 12 days
Value as of acquisition date	$ 93,700
Smart AutoCare | Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)	7 years 2 months 12 days
Value as of acquisition date	$ 86,000
Smart AutoCare | Software licensing
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)	5 years
Value as of acquisition date	$ 600
Smart AutoCare | Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)	13 years 6 months
Value as of acquisition date	$ 7,100