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Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Supplemental Disclosure of Non-cash Investing and Financing Activities      
Class A and Class B common stock issued in connection with business combinations $ 56,626 $ 0 $ 23,556
Increase/decrease to goodwill from measurement period adjustments/business combinations 0 2,200 (351)
Class A common stock issued for payment of earn-outs 450 4,185 800
Class A common stock issued in connection with debt repayment 28,492 0 0
Gain from transfer of membership (22,969) 0 0
Accrued property and equipment purchases 784 11  
Accrued property and equipment purchases     (527)
Consideration for asset acquisition or business combinations 14,600 0 16,000
Effects of Leases      
Operating cash flows from operating leases 13,845 13,708 12,330
Leased assets obtained in exchange for operating lease liabilities (2,583) (2,170)  
Leased assets obtained in exchange for operating lease liabilities     30,463
Effects of Class B Exchanges      
Decrease in non-controlling interests as a result of Class B Exchanges 0 0 42,377
Decrease in deferred tax liability as a result of securities offerings and exchanges 0 0 (22)
Supplemental Disclosures      
Cash paid for interest 7,113 13,352 5,037
Cash paid for taxes, net $ 551 $ 9,679 $ 1,484