Accrued Acquisition Liability (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Aug. 31, 2020	May 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Payments for purchase			$ 2,300	$ 0
Implied interest rate			1.80%
Accrued acquisition liability			$ 32,673	$ 0
Partsmaster
Business Acquisition [Line Items]
Payments for purchase	$ 2,300
Accrued acquisition liability	$ 32,400		$ 32,700
Forecast \| Partsmaster
Business Acquisition [Line Items]
Payments for purchase		$ 33,000
Accrued acquisition liability		$ 32,700