Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Narrative (Details)

v3.24.3
Fair Value Measurements - Narrative (Details)
$ in Thousands, £ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
Mar. 31, 2024
GBP (£)
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2023
GBP (£)
Jan. 31, 2022
USD ($)
Jan. 31, 2022
GBP (£)
Oct. 31, 2021
USD ($)
Oct. 06, 2021
USD ($)
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Payments of contingent consideration     $ 10,977 $ 9,431 $ 1,369          
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]     Amortization of intangible assets Amortization of intangible assets Amortization of intangible assets          
Australia, Dollars | Foreign currency translation adjustment                    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Shareholders' equity     $ 18,200              
United Kingdom, Pounds | Foreign currency translation adjustment                    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Shareholders' equity     13,300              
Aidvantage                    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Maximum payment                 $ 65,000  
Contingent consideration liability     7,500 $ 7,500           $ 18,500
BZ Bodies Limited                    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Maximum payment             $ 2,500 £ 2.0    
Contingent consideration liability       2,500   £ 2.0        
Payments of contingent consideration $ 2,500 £ 2.0                
U.S. Services and Outside the U.S. Services                    
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]                    
Impairment of long-lived assets held-for-use     $ 0 $ 9,500 $ 0