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Business Combinations - Additional Information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2022
USD ($)
business
Dec. 31, 2021
USD ($)
business
Dec. 31, 2020
USD ($)
Business Acquisition, Contingent Consideration [Line Items]      
Annual aggregate revenue $ 148,100    
Transaction and integration related costs 10,500    
Proceeds from sales of assets and divested operations $ 3,022 $ 9,710 $ 711
Benefits and Insurance Services      
Business Acquisition, Contingent Consideration [Line Items]      
Number of businesses sold | business 1 1  
Proceeds from sales of assets and divested operations $ 2,500 $ 9,700  
Gain (loss) on disposition of business $ 2,400 $ 6,300  
Client lists      
Business Acquisition, Contingent Consideration [Line Items]      
Acquired finite-lived intangible assets, useful life 10 years    
Other intangibles      
Business Acquisition, Contingent Consideration [Line Items]      
Acquired finite-lived intangible assets, useful life 3 years