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Fair Value of Financial Instruments - Fair Value of Financial Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Liabilities:    
Accruals and other current liabilities $ 5,382 $ 2,884
Fair Value, Recurring    
Assets:    
Total assets 10,138 35,043
Liabilities:    
Acquisition contingent consideration 6,613 4,299
Deferred compensation plan liabilities 102,199 2,591
Cash-settled equity awards 353 195
Total liabilities 109,165 7,085
Accruals and other current liabilities 5,382 2,884
Deferred compensation plan, current 7,309 169
Fair Value, Recurring | Money Market Funds    
Assets:    
Money market funds 21 34,696
Fair Value, Recurring | Interest rate swap    
Assets:    
Interest rate swap 10,117 347
Level 1 | Fair Value, Recurring    
Assets:    
Total assets 21 34,696
Liabilities:    
Acquisition contingent consideration 0 0
Deferred compensation plan liabilities 102,199 2,591
Cash-settled equity awards 353 195
Total liabilities 102,552 2,786
Level 1 | Fair Value, Recurring | Money Market Funds    
Assets:    
Money market funds 21 34,696
Level 1 | Fair Value, Recurring | Interest rate swap    
Assets:    
Interest rate swap 0 0
Level 2 | Fair Value, Recurring    
Assets:    
Total assets 10,117 347
Liabilities:    
Acquisition contingent consideration 0 0
Deferred compensation plan liabilities 0 0
Cash-settled equity awards 0 0
Total liabilities 0 0
Level 2 | Fair Value, Recurring | Money Market Funds    
Assets:    
Money market funds 0 0
Level 2 | Fair Value, Recurring | Interest rate swap    
Assets:    
Interest rate swap 10,117 347
Level 3 | Fair Value, Recurring    
Assets:    
Total assets 0 0
Liabilities:    
Acquisition contingent consideration 6,613 4,299
Deferred compensation plan liabilities 0 0
Cash-settled equity awards 0 0
Total liabilities 6,613 4,299
Level 3 | Fair Value, Recurring | Money Market Funds    
Assets:    
Money market funds 0 0
Level 3 | Fair Value, Recurring | Interest rate swap    
Assets:    
Interest rate swap $ 0 $ 0