v3.26.1
STOCKHOLDERS’ EQUITY AND EQUITY INSTRUMENTS - Schedule of Stock-Based Compensation Activity (Details)
$ / shares in Units, $ in Millions
 9 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Stock Options  
Number  
Outstanding at beginning of period (in shares) 107,261
Granted (in shares) 0
Released from restriction (in shares) 0
Cancelled/expired (in shares) (24,368)
Outstanding at end of period (in shares) 82,893
Weighted-average exercise price  
Weighted-average exercise price at beginning of period (in dollars per share) | $ / shares $ 63.43
Weighted-average exercise price, granted (in dollars per share) | $ / shares 0
Weighted-average exercise price, released from restriction (in dollars per share) | $ / shares 0
Weighted-average exercise price, cancelled/expired (in dollars per share) | $ / shares 56.27
Weighted-average exercise price at end of period (in dollars per share) | $ / shares $ 65.54
RSUs  
Number  
Outstanding at beginning of period (in shares) 828,922
Granted (in shares) 490,913
Released from restriction (in shares) (335,960)
Cancelled/expired (in shares) (23,737)
Outstanding at end of period (in shares) 960,138
Weighted-average fair value  
Weighted-average fair value at beginning of period (in dollars per share) | $ / shares $ 15.34
Weighted-average fair value, granted (in dollars per share) | $ / shares 18.77
Weighted-average fair value, released from restriction (in dollars per share) | $ / shares 16.05
Weighted-average fair value, cancelled/expired (in dollars per share) | $ / shares 21.79
Weighted-average fair value at end of period (in dollars per share) | $ / shares $ 16.70
PSUs  
Number  
Outstanding at beginning of period (in shares) 316,480
Granted (in shares) 182,071
Released from restriction (in shares) 0
Cancelled/expired (in shares) 0
Outstanding at end of period (in shares) 498,551
Weighted-average fair value  
Weighted-average fair value at beginning of period (in dollars per share) | $ / shares $ 16.89
Weighted-average fair value, granted (in dollars per share) | $ / shares 19.37
Weighted-average fair value, released from restriction (in dollars per share) | $ / shares 0
Weighted-average fair value, cancelled/expired (in dollars per share) | $ / shares 0
Weighted-average fair value at end of period (in dollars per share) | $ / shares $ 17.80
PSU at grant date (in shares per unit) 1
Equity Awards  
Weighted-average fair value  
Fair value of stock withheld related to vesting of RSUs and PSUs | $ $ 1.9