Acquisitions - Schedule of Contingent and Non-Contingent Consideration Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Business Acquisition, Contingent Consideration [Line Items]
Accruals and other current liabilities	$ 6,561	$ 2,884
Accruals and other current liabilities	5,952	685
Series of Individually Immaterial Business Acquisitions
Business Acquisition, Contingent Consideration [Line Items]
Accruals and other current liabilities	6,561	2,884
Other liabilities	2,167	1,415
Contingent consideration from acquisitions	8,728	4,299
Accruals and other current liabilities	5,952	685
Other liabilities	6,986	1,774
Non-contingent consideration from acquisitions	$ 12,938	$ 2,459