v3.25.2
Mergers and Acquisitions - Estimated Fair Values of the Material Aggregate Assets and Liabilities Acquired (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
May 16, 2025
May 01, 2025
Feb. 03, 2025
Dec. 31, 2024
Business Combination [Line Items]          
Goodwill $ 3,085,182       $ 2,646,676
2025 Acquisitions          
Business Combination [Line Items]          
Cash and cash equivalents 18,575        
Commissions and fees receivable – net 37,359        
Fiduciary cash and receivables 112,914        
Goodwill 401,087        
Lease right-of-use assets 4,369        
Other current and non-current assets 4,451        
Total assets acquired 838,825        
Accounts payable and accrued liabilities 5,235        
Accrued compensation 7,911        
Fiduciary liabilities 112,914        
Operating lease liabilities 4,369        
Deferred tax liabilities 58,844        
Total liabilities assumed 189,273        
Net assets acquired 649,552        
2025 Acquisitions | Customer Relationships          
Business Combination [Line Items]          
Intangible assets $ 247,803        
Weighted average amortization period 13 years        
2025 Acquisitions | Other intangible assets          
Business Combination [Line Items]          
Intangible assets $ 12,267        
Velocity          
Business Combination [Line Items]          
Cash and cash equivalents       $ 17,736  
Commissions and fees receivable – net       23,650  
Fiduciary cash and receivables       105,779  
Goodwill       363,926  
Lease right-of-use assets       3,757  
Other current and non-current assets       4,310  
Total assets acquired       747,558  
Accounts payable and accrued liabilities       5,042  
Accrued compensation       7,457  
Fiduciary liabilities       105,779  
Operating lease liabilities       3,757  
Deferred tax liabilities       57,298  
Total liabilities assumed       179,333  
Net assets acquired       568,225  
Velocity | Customer Relationships          
Business Combination [Line Items]          
Intangible assets       216,400  
Velocity | Other intangible assets          
Business Combination [Line Items]          
Intangible assets       $ 12,000  
USQ          
Business Combination [Line Items]          
Cash and cash equivalents     $ 0    
Commissions and fees receivable – net     13,124    
Fiduciary cash and receivables     1,649    
Goodwill     20,539    
Lease right-of-use assets     612    
Other current and non-current assets     101    
Total assets acquired     55,325    
Accounts payable and accrued liabilities     193    
Accrued compensation     373    
Fiduciary liabilities     1,649    
Operating lease liabilities     612    
Deferred tax liabilities     0    
Total liabilities assumed     2,827    
Net assets acquired     52,498    
USQ | Customer Relationships          
Business Combination [Line Items]          
Intangible assets     19,100    
USQ | Other intangible assets          
Business Combination [Line Items]          
Intangible assets     $ 200    
360° Underwriting          
Business Combination [Line Items]          
Cash and cash equivalents   $ 839      
Commissions and fees receivable – net   585      
Fiduciary cash and receivables   5,486      
Goodwill   16,622      
Lease right-of-use assets   0      
Other current and non-current assets   40      
Total assets acquired   35,942      
Accounts payable and accrued liabilities   0      
Accrued compensation   81      
Fiduciary liabilities   5,486      
Operating lease liabilities   0      
Deferred tax liabilities   1,546      
Total liabilities assumed   7,113      
Net assets acquired   28,829      
360° Underwriting | Customer Relationships          
Business Combination [Line Items]          
Intangible assets   12,303      
360° Underwriting | Other intangible assets          
Business Combination [Line Items]          
Intangible assets   $ 67