Acquisitions - Fair Value of Net Assets Acquired (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Business Acquisition [Line Items]
Goodwill	$ 3,041,446	$ 3,545,297
Significant Acquisitions In 2023
Business Acquisition [Line Items]
Cash	256
Accounts receivable	1,798
Inventory	1,413
Prepaid and other current assets	10
Equipment and other fixed assets	9,008
Operating lease right-of-use assets	5,506
Finance lease right-of-use assets	200
Goodwill	7,297
Accounts payable and accrued expenses	(713)
Other current liabilities	(846)
Operating lease liabilities	(5,506)
Finance lease liabilities	(200)
Net assets acquired	$ 18,223
Significant Acquisitions In 2022
Business Acquisition [Line Items]
Cash			$ 155
Accounts receivable			2,206
Inventory			686
Prepaid and other current assets			16
Equipment and other fixed assets			4,502
Goodwill			11,788
Identifiable intangible assets			500
Accounts payable and accrued expenses			(2,820)
Contract liabilities			(134)
Net assets acquired			$ 16,899