v3.26.1
Revenue (Schedule of Uncollectible Amounts And Change in Expected Allowance for Credit Losses for Trade Accounts Receivable and Unbilled Receivables) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenue from Contract with Customer [Abstract]        
Balance, beginning $ 13,107 $ 8,558 $ 9,725 $ 7,738
Changes in estimates 1,733 519 5,183 1,325
Write-offs (5)   (83) (120)
Other [1] 177 (101) 187 33
Balance, ending $ 15,012 $ 8,976 $ 15,012 $ 8,976
[1] Includes effects of foreign exchange rate changes during the period.