v3.26.1
Stock-Based Compensation (Options and Common Shares Reserved for Grant) (Details) - Stock Options
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Options Outstanding [Roll Forward]  
Options Outstanding, Beginning Balance (in shares) | shares 857
Options Outstanding, Granted (in shares) | shares 54
Options Outstanding, Exercised (in shares) | shares (578)
Options Outstanding, Forfeited / Canceled (in shares) | shares (10)
Options Outstanding, Ending Balance (in shares) | shares 323
Options Outstanding, Exercisable (in shares) | shares 205
Weighted Average Exercise Price [Roll Forward]  
Weighted Average Exercise Price, Beginning Balance $ 21.66
Weighted Average Exercise Price, Granted 41.61
Weighted Average Exercise Price, Exercised 19.70
Weighted Average Exercise Price, Forfeited / Canceled 28.10
Weighted Average Exercise Price, Ending Balance 28.28
Weighted Average Exercise Price, Exercisable $ 24.36
Weighted Average Remaining Contractual Term [Abstract]  
Weighted Average Remaining Contractual Term, Outstanding 3 years 8 months 12 days
Weighted Average Remaining Contractual Term, Exercisable 2 years 8 months 12 days
Aggregate Intrinsic Value, Outstanding | $ $ 6,443 [1]
Aggregate Intrinsic Value, Exercisable | $ $ 4,891 [1]
Closing Stock Price $ 74.95
[1] The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $74.95 as of June 30, 2026, which would have been received by the option holders had all option holders exercised their options as of that date.