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Stock-Based Compensation (Tables)
 12 Months Ended
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Activity Related to Performance Shares
The following is a summary of activity related to performance shares:
 
2016
 
2015
 
Number of
Shares
 
Weighted Average
Fair Value at Date
of Grant
 
Number of
Shares
 
Weighted Average
Fair Value at Date
of Grant
Outstanding at beginning of year
98

 
$
28.50

 
174

 
$
24.86

Restricted shares awarded
59

 
9.53

 
25

 
29.88

Restricted shares earned
(20
)
 
29.59

 
(33
)
 
24.68

Performance shares awarded
102

 
10.40

 
56

 
28.61

Performance shares earned
—

 
—

 
(11
)
 
20.75

Awards forfeited
(93
)
 
20.58

 
(113
)
 
25.16

Outstanding at end of year
146

 
$
13.07

 
98

 
$
28.50