Fair Value of Financial Instruments - Fair Value of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Liabilities:
Accruals and other current liabilities	$ 1,923	$ 5,382
Fair Value, Recurring
Assets:
Total assets	29,626	10,138
Liabilities:
Acquisition contingent consideration	1,923	6,613
Deferred compensation plan liabilities	77,566	102,199
Cash-settled equity awards	447	353
Total liabilities	79,936	109,165
Accruals and other current liabilities	1,923	5,382
Deferred compensation plan, current	2,041	7,309
Fair Value, Recurring | Interest rate swap
Assets:
Interest rate swap	29,607	10,117
Fair Value, Recurring | Money Market Funds
Assets:
Money market funds	19	21
Level 1 | Fair Value, Recurring
Assets:
Total assets	19	21
Liabilities:
Acquisition contingent consideration	0	0
Deferred compensation plan liabilities	77,566	102,199
Cash-settled equity awards	447	353
Total liabilities	78,013	102,552
Level 1 | Fair Value, Recurring | Interest rate swap
Assets:
Interest rate swap	0	0
Level 1 | Fair Value, Recurring | Money Market Funds
Assets:
Money market funds	19	21
Level 2 | Fair Value, Recurring
Assets:
Total assets	29,607	10,117
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 | Interest rate swap
Assets:
Interest rate swap	29,607	10,117
Level 2 | Fair Value, Recurring | Money Market Funds
Assets:
Money market funds	0	0
Level 3 | Fair Value, Recurring
Assets:
Total assets	0	0
Liabilities:
Acquisition contingent consideration	1,923	6,613
Deferred compensation plan liabilities	0	0
Cash-settled equity awards	0	0
Total liabilities	1,923	6,613
Level 3 | Fair Value, Recurring | Interest rate swap
Assets:
Interest rate swap	0	0
Level 3 | Fair Value, Recurring | Money Market Funds
Assets:
Money market funds	$ 0	$ 0