v3.26.1
BUSINESS COMBINATIONS - Summary of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 12 Months Ended
Nov. 01, 2025
Nov. 01, 2024
Dec. 31, 2025
Nov. 01, 2025
Dec. 31, 2024
Dec. 31, 2023
Liabilities assumed:            
Goodwill     $ 2,329,799   $ 2,331,461 $ 865,180
Marcum LLP            
Business Combination [Line Items]            
Total consideration transferred $ 1,997,781 $ 1,997,781        
Adjustments, Total consideration transferred       $ 0    
Assets acquired:            
Account receivable 169,391 170,139   169,391    
Adjustments, Account receivable       (748)    
Unbilled revenue 23,247 23,247   23,247    
Adjustments, Unbilled revenue       0    
Other current assets 24,431 25,914   24,431    
Adjustments, Other current assets       (1,483)    
Property and equipment 31,221 31,292   31,221    
Adjustments, Property, and equipment       (71)    
Other intangible assets 490,000 490,000   490,000    
Adjustments, Other intangible assets       0    
Right-of- use asset 166,840 164,970   166,840    
Adjustments, Right-of- use asset       1,870    
Deferred income taxes, net 3,533 3,427   3,533    
Adjustments, Deferred income taxes, net       106    
Total identifiable assets acquired 908,663 908,989   908,663    
Adjustments, Total identifiable assets acquired       (326)    
Liabilities assumed:            
Account payable 27,278 25,370   27,278    
Adjustments, Account payable       1,908    
Accrued personnel costs 55,220 44,650   55,220    
Adjustments, Accrued personnel costs       10,570    
Other current liabilities 67,156 27,267   67,156    
Adjustments, Other current liabilities       39,889    
Contingent purchase price assumed (current and non-current) 24,947 24,232   24,947    
Adjustments, Contingent purchase price assumed (current and non-current)       715    
Lease liabilities (current and non-current) 174,256 172,792   174,256    
Adjustments, Lease liabilities (current and non-current)       1,464    
Other non-current liabilities 1,295 61,967 40,000 1,295 $ 61,000  
Adjustments, Other non-current liabilities       (60,672)    
Total liabilities assumed 350,152 356,278   350,152    
Adjustments, Total liabilities assumed       (6,126)    
Net asset acquired 558,511 552,711   558,511    
Adjustments, Net asset acquired       5,800    
Goodwill $ 1,439,270 $ 1,445,070 1,439,300 1,439,270    
Adjustments, Goodwill     $ (5,800) $ (5,800)