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Stock Award Plans (Tables)
 12 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Option Activity A summary of stock option activity and changes during the year are as follows.
OptionsNumber of OptionsWeighted
Average
Exercise
Price
Weighted Average
Remaining
Contractual
Term (Years)
Aggregate
Intrinsic
Value
(In thousands)
Outstanding at September 30, 20211,030,323 $29.14 8$5,330 
Granted352,043 32.49 
Exercised(64,415)28.16 
Forfeited(180,343)30.24 
Outstanding at September 30, 20221,137,608 30.06 8— 
Granted779,740 28.47 
Exercised(35,877)30.39 
Forfeited(173,646)30.07 
Outstanding at September 30, 20231,707,825 $29.32 8$— 
Exercisable at September 30, 2023318,695 $33.15 7$— 
Schedule of Miscellaneous Information Related to Stock Options
The table below presents other information regarding stock options.
Year ended September 30,202320222021
(In thousands, except grant date fair value per stock option)
Compensation cost for stock options$1,875 $1,296 $1,676 
Weighted average grant date fair value per stock option5.91 5.10 4.39 
Total intrinsic value of options exercised214 433 276 
Grant date fair value of options exercised198 345 78 
Cash received from option exercises1,089 1,823 339 
Summary of Nonvested Activity The following is a summary of activity related to unvested stock options.
Year ended September 30,202320222021
Unvested Stock OptionsOptions OutstandingWeighted
Average
Grant Date
Fair Value		Options OutstandingWeighted
Average
Grant Date
Fair Value		Options OutstandingWeighted
Average
Grant Date
Fair Value
Outstanding at beginning of period981,410 $5.07 1,031,134 $4.39 1,210,689 $4.38 
Granted779,740 7.11 352,043 7.18 — — 
Vested(217,695)6.13 (223,387)5.32 — — 
Forfeited(153,033)5.38 (178,380)5.02 (179,555)4.31 
Outstanding at end of period1,390,422 $5.93 981,410 $5.07 1,031,134 $4.39 
The following table summarizes information about unvested restricted stock activity.
Year ended September 30,202320222021
Non-vested Restricted StockOutstandingWeighted
Average
Fair Value		OutstandingWeighted
Average
Fair Value		OutstandingWeighted
Average
Fair Value
Outstanding at beginning of period489,777 $21.64 522,991 $19.96 409,469 $24.32 
Granted247,966 26.48 224,593 25.34 331,344 17.04 
Vested(119,956)29.87 (246,119)21.34 (132,649)30.64 
Forfeited(122,005)12.16 (11,688)23.96 (85,173)12.94 
Outstanding at end of period495,782 $24.40 489,777 $21.64 522,991 $19.96