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Acquisitions Of Businesses (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 USD ($) Company | Dec. 31, 2022 USD ($) Company
Business Acquisition [Line Items] |  |
Number of businesses acquired | Company | 7 | 6
Goodwill | $ 953,359 | $ 919,151
2022Acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase price |  | 100,800
Working capital acquired |  | 7,100
Other net liabilities |  | 1,100
Goodwill |  | 28,900
Identifiable intangible assets |  | $ 65,900
2023Acquisitions |  |
Business Acquisition [Line Items] |  |
Purchase price | 92,800 |
Working capital acquired | 9,100 |
Other net liabilities | 6,700 |
Goodwill | 34,200 |
Identifiable intangible assets | 56,200 |
Goodwill and identifiable intangible assets, tax deductible amount | $ 23,200 |

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