Fair Value Measurements of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Oct. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities – certificates of deposit	$ 2,125
Equity securities	896		$ 5,567
Investments in other entities – equity method	44,428	$ 45,832	40,299		$ 38,954	$ 43,820	$ 41,715
Apollo-Sun Labs Management, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity interest purchase obligation, noncurrent	8,100		5,800
Change in fair value of equity interest	2,300
AAMG contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest acquired				100.00%
Cash contingent consideration	5,200		5,900
Stock contingent consieration	$ 5,600		5,600
DMG And Sun Labs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity interest purchase obligation, period to purchase	3 years
DMG remaining equity interest purchase
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in other entities – equity method	$ 8,500
Interest rate collar
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value	$ 1,300
Derivative, ceiling interest rate	5.00%
Derivative, floor interest rate	2.34%
Contingent equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent equity securities			1,900
Other Noncurrent Assets | Interest rate swap | Cash flow hedges: | Derivatives designated as hedging instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, fair value	$ 4,200		3,200
Certificates of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term marketable securities, maturity period	90 days
Marketable securities – certificates of deposit	$ 2,100		$ 0