v3.25.4
Share-Based Compensation - Restricted Stock Units (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Weighted Average Grant Date Fair Value Per Share    
Compensation expense recorded upon vesting of awards $ 15,135 $ 14,725
Restricted Stock    
Shares    
Unvested, beginning balance (in shares) 478,611 509,171
Awarded (in shares) 190,601 196,793
Vested (in shares) (81,785) (16,793)
Forfeited (in shares) (337) (1,635)
Unvested, ending balance (in shares) 587,090 687,536
Weighted Average Grant Date Fair Value Per Share    
Outstanding, beginning balance, weighted average grant date fair value (in dollars per share) $ 70.36 $ 31.59
Awarded, weighted average grant date fair value (in dollars per share) 113.60 80.21
Vested, weighted average grant date fair value (in dollars per share) 115.01 95.90
Forfeited, weighted average grant date fair value (in dollars per share) 78.94 30.78
Outstanding, ending balance, weighted average grant date fair value (in dollars per share) $ 78.17 $ 29.55
Aggregate grant date fair value of shares awarded $ 21,652 $ 15,785
Compensation expense recorded upon vesting of awards 12,824 3,256
Unrecognized compensation expense at fiscal year-end $ 33,421 $ 19,146
Weighted average recognition period remaining, in years 3 years 8 months 12 days 4 years