Annual report pursuant to Section 13 and 15(d)

Other Balance Sheet Components - Narrative (Details)

v3.22.2.2
Other Balance Sheet Components - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Sep. 21, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Receivables Purchase Agreement, maximum sales amount       $ 110,000
Receivables purchase program, effective interest rate 4.08%      
Transfer of financial assets, accounted for as sales $ 74,200      
Cash received from transfer of financial assets 73,900      
Obligation payable under Receivables Purchase Agreement 60,700      
Depreciation expense 28,300 $ 34,100 $ 54,900  
Gain on sale of land and building 11,046 0 0  
Capitalized software amortization expense 14,100 12,300 9,600  
Capitalized software written off 0 2,400 600  
Amortization of deferred contract costs 8,900 13,600 6,800  
U.S. Services and Outside the U.S.        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Impairment loss on contract costs 0 $ 4,400 $ 600  
Land and Building        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Gain on sale of land and building $ 11,000