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Acquisitions Of Businesses (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($) Company	Dec. 31, 2021 USD ($) Company
Business Acquisition [Line Items]
Number of businesses acquired | Company	4	8
Goodwill	$ 916,812	$ 890,268
2021 Acquisitions
Business Acquisition [Line Items]
Purchase price		131,200
Working capital acquired		22,900
Other net liabilities		600
Goodwill		38,300
Identifiable intangible assets		$ 70,600
2022Acquisitions
Business Acquisition [Line Items]
Purchase price	93,200
Working capital acquired	7,600
Other net liabilities	3,000
Goodwill	26,500
Identifiable intangible assets	$ 62,100

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