Annual report [Section 13 and 15(d), not S-K Item 405]

Acquisitions and Divestitures (Details)

v3.25.3
Acquisitions and Divestitures (Details)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 14, 2024
USD ($)
segment
Dec. 31, 2024
USD ($)
Nov. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2025
USD ($)
segment
Business Combination [Line Items]            
Number of operating segments | segment 3         3
Disposal Group Not Discontinued Operation Gain Loss On Disposal Statement Of Income Extensible List Not Disclosed Flag       pre-tax loss    
Fair Value, Recurring            
Business Combination [Line Items]            
Guaranty liabilities           $ 11,342
Disposal Group, Disposed of by Sale, Not Discontinued Operations            
Business Combination [Line Items]            
Pre-tax loss on sale of practice     $ 1,000      
Impairment charges         $ 2,900  
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Businesses In Australia And Korea            
Business Combination [Line Items]            
Pre-tax loss on sale of practice   $ 39,500        
Contingent consideration   5,000        
Foreign currency exchange losses   $ 21,300        
Disposal Group, Disposed of by Sale, Not Discontinued Operations | UNITED KINGDOM            
Business Combination [Line Items]            
Pre-tax loss on sale of practice       $ 600    
Total fair value of consideration       16,000   $ 1,900
Disposal Group, Disposed of by Sale, Not Discontinued Operations | SWEDEN            
Business Combination [Line Items]            
Total fair value of consideration       $ 400    
Opteamix LLC            
Business Combination [Line Items]            
Cash consideration $ 18,000          
Intangible assets, estimated useful life 8 years