v3.26.3
Business Combinations - Columbia Capital Acquisition (Details)
$ in Thousands, shares in Millions
Aug. 18, 2026
USD ($)
shares
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Business Acquisition [Line Items]      
Goodwill   $ 10,050,563 $ 9,711,953
Columbia Capital Acquisition      
Business Acquisition [Line Items]      
Aggregate value of consideration transferred $ 690,100    
Consideration transferred, fair value of common stock 453,000    
Consideration transferred, cash paid and contingent consideration 17,100    
Acquisition-related costs 23,000    
Goodwill 499,143    
Intangible assets acquired 194,300    
Columbia Capital Acquisition | Existing Investment Management Contracts      
Business Acquisition [Line Items]      
Intangible assets acquired $ 150,000    
Columbia Capital Acquisition | Existing Investment Management Contracts | Minimum      
Business Acquisition [Line Items]      
Useful life of intangible assets acquired 2 years    
Columbia Capital Acquisition | Existing Investment Management Contracts | Maximum      
Business Acquisition [Line Items]      
Useful life of intangible assets acquired 8 years    
Columbia Capital Acquisition | Customer Relationships      
Business Acquisition [Line Items]      
Intangible assets acquired $ 42,600    
Useful life of intangible assets acquired 7 years    
Columbia Capital Acquisition | Trade Name      
Business Acquisition [Line Items]      
Intangible assets acquired $ 1,700    
Useful life of intangible assets acquired 7 years 6 months    
Columbia Capital Acquisition | Common Stock [Member]      
Business Acquisition [Line Items]      
Consideration transferred in the form of equity (in shares) | shares 2.3    
Columbia Capital Acquisition | Future management fee performance targets | Level 3 | Discount rate      
Business Acquisition [Line Items]      
Business Combination, Contingent Consideration, Liability, Measurement Input 0.1375    
Columbia Capital Acquisition | Future management fee performance targets | Common Stock [Member] | Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent      
Business Acquisition [Line Items]      
Consideration transferred, fair value of contingent consideration $ 220,000    
Columbia Capital Acquisition | Future management fee performance targets | Common Stock [Member] | Level 3      
Business Acquisition [Line Items]      
Consideration transferred in the form of equity (in shares) | shares 1.5