v3.26.1
Summary of Significant Accounting Policies - Additional Information (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Product Information [Line Items]        
Carrying amount $ 200,000 $ 200,000 $ 200,000  
Loss exposure, amount 6,900,000 $ 6,900,000 6,300,000  
Number of operating segments | segment   1    
Number of reportable segments | segment   1    
Short-term cash equivalent investments 3,400,000 $ 3,400,000 2,900,000 $ 1,500,000
Capitalization of intangible assets 500,000 500,000 1,200,000  
Amortization of capitalized implementation costs 2,100,000 2,100,000 900,000 900,000
Held to maturity debt securities   700,000 1,500,000 900,000
Allowance for expected credit losses 0 0 0  
Unrealized losses for these investments attributable to credit factors 0 0 28,000  
Goodwill impairment   0 0 $ 0
Goodwill accumulated impairment 0 $ 0 0  
Payments are contingent upon the continued employment term   5 years    
Deferred revenue, noncurrent $ 0 $ 0 $ 0  
Advertising costs   $ 0    
Effect of dilutive Class X Umbrella Units (in shares) | shares 98,294,464      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01        
Product Information [Line Items]        
Current portion of deferred revenue 1 year 1 year    
Class X Umbrella Units        
Product Information [Line Items]        
Effect of dilutive Class X Umbrella Units (in shares) | shares 98,294,464      
Trade Names        
Product Information [Line Items]        
Useful life 3 years 3 years    
Intellectual property        
Product Information [Line Items]        
Useful life 5 years 5 years    
Computer software        
Product Information [Line Items]        
Property, plant and equipment, useful life 3 years 3 years    
Customer relationships        
Product Information [Line Items]        
Useful life 5 years 5 years    
Andersen Tax Holdings LLC        
Product Information [Line Items]        
Ownership percentage 100.00% 100.00%