v3.26.1
Acquisitions (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Business Acquisition [Line Items]    
Revenues before reimbursable expenses $ 451,767 $ 404,141
Goodwill recorded in connection with business acquisition(1) 209  
2025 Acquisitions    
Business Acquisition [Line Items]    
Revenues before reimbursable expenses   700
Business Combination, Consideration Transferred 159,700  
us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired 110,200  
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable 29,200  
Asset Acquisition, Contingent Consideration, Liability 20,300  
Goodwill recorded in connection with business acquisition(1) 108,100  
Business Acquisition, Goodwill, Expected Tax Deductible Amount 98,700  
Finite-Lived Intangible Assets Acquired 58,100  
Healthcare    
Business Acquisition [Line Items]    
Revenues before reimbursable expenses 229,185 203,321
Commercial:    
Business Acquisition [Line Items]    
Revenues before reimbursable expenses 92,971 $ 75,804
Goodwill recorded in connection with business acquisition(1) 209  
Education/Healthcare | 2025 Acquisitions    
Business Acquisition [Line Items]    
Goodwill recorded in connection with business acquisition(1) 10,400  
TVG_Treliant Holdings, LLC | Customer relationships | 2025 Acquisitions    
Business Acquisition [Line Items]    
Finite-Lived Intangible Assets Acquired $ 19,100  
Useful Life  (in years) 10 years  
TVG_Treliant Holdings, LLC | Commercial: | 2025 Acquisitions    
Business Acquisition [Line Items]    
Goodwill recorded in connection with business acquisition(1) $ 27,400  
Eclipse LLC | 2025 Acquisitions    
Business Acquisition [Line Items]    
Finite-Lived Intangible Assets Acquired 27,600  
Eclipse LLC | Customer relationships | 2025 Acquisitions    
Business Acquisition [Line Items]    
Finite-Lived Intangible Assets Acquired $ 25,500  
Useful Life  (in years) 10 years  
Eclipse LLC | Technology and software | 2025 Acquisitions    
Business Acquisition [Line Items]    
Finite-Lived Intangible Assets Acquired $ 2,100  
Useful Life  (in years) 5 years  
Eclipse LLC | Healthcare | 2025 Acquisitions    
Business Acquisition [Line Items]    
Goodwill recorded in connection with business acquisition(1) $ 53,800  
Wilson Perumal and Company, Inc. | Commercial: | 2025 Acquisitions    
Business Acquisition [Line Items]    
Goodwill recorded in connection with business acquisition(1) $ 16,500