Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Liabilities
Interest rate swap	$ 11,473	$ 53,903
Deferred compensation plan liabilities	13,883	14,007
Contingent consideration liability	5,900
Current Liabilities
Liabilities
Deferred compensation plan liabilities	2,000
Non-current Liabilities
Liabilities
Deferred compensation plan liabilities	12,000
Quoted Prices in Active Markets (Level 1)
Liabilities
Interest rate swap	0	0
Deferred compensation plan liabilities	0	0
Contingent consideration liability	0
Significant Other Observable Inputs (Level 2)
Liabilities
Interest rate swap	11,473	53,903
Deferred compensation plan liabilities	13,883	14,007
Contingent consideration liability	0
Significant Unobservable Inputs (Level 3)
Liabilities
Interest rate swap	0	0
Deferred compensation plan liabilities	0	$ 0
Contingent consideration liability	$ 5,900