v3.26.1
Stock-Based Compensation - Restricted Stock Units Activity (Details)
6 Months Ended
Mar. 31, 2026
$ / shares
shares
Time-Vested Restricted Stock Units (TVUs)  
Stock Units (in thousands)  
Nonvested, Beginning Balance (in shares) | shares 2,055,400
Granted (in shares) | shares 2,051,995
Distributed (in shares) | shares (953,900)
Forfeited, canceled or expired (in shares) | shares (181,500)
Nonvested, Ending Balance (in shares) | shares 2,972,000
Expected to vest (in shares) | shares 2,808,900
Weighted Average Grant Date Fair Value  
Nonvested, Beginning Balance (in dollars per share) | $ / shares $ 18.97
Granted (in dollars per share) | $ / shares 12.37
Distributed (in dollars per share) | $ / shares 19.67
Forfeited, canceled or expired (in dollars per share) | $ / shares 15.41
Nonvested, Ending Balance (in dollars per share) | $ / shares 14.44
Expected to vest (in dollars per share) | $ / shares $ 14.44
Performance-Based Restricted Stock Units (PSUs)  
Stock Units (in thousands)  
Nonvested, Beginning Balance (in shares) | shares 272,800
Granted (in shares) | shares 1,292,900
Distributed (in shares) | shares (285,300)
Forfeited, canceled or expired (in shares) | shares (67,000.0)
Nonvested, Ending Balance (in shares) | shares 1,213,400
Expected to vest (in shares) | shares 1,146,600
Weighted Average Grant Date Fair Value  
Nonvested, Beginning Balance (in dollars per share) | $ / shares $ 22.63
Granted (in dollars per share) | $ / shares 11.80
Distributed (in dollars per share) | $ / shares 18.80
Forfeited, canceled or expired (in dollars per share) | $ / shares 10.86
Nonvested, Ending Balance (in dollars per share) | $ / shares 10.97
Expected to vest (in dollars per share) | $ / shares $ 11.79