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Stock and Other Compensation Plans (Table)
 12 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity
The following summarizes information regarding the restricted stock units granted under the plan during the fiscal years ended September 30, 2020, 2019 and 2018:
 
2020
 
2019
 
2018
 
Number of
Restricted
Units
 
Weighted
Average
Grant-Date
Fair
Value
 
Number of
Restricted
Units
 
Weighted
Average
Grant-Date
Fair
Value
 
Number of
Restricted
Units
 
Weighted
Average
Grant-Date
Fair
Value
Nonvested at beginning of year
503,072

 
$
91.66

 
538,592

 
$
80.91

 
570,814

 
$
69.45

Granted
199,985

 
102.34

 
241,472

 
98.25

 
248,710

 
85.62

Vested
(242,975
)
 
85.66

 
(269,347
)
 
76.71

 
(274,392
)
 
64.43

Forfeited
(16,803
)
 
96.87

 
(7,645
)
 
86.37

 
(6,540
)
 
74.87

Nonvested at end of year
443,279

 
$
99.28

 
503,072

 
$
91.66

 
538,592

 
$
80.91