XML 47 R45.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation Plans - Summary of Stock Options Outstanding (Details) (USD $)
 12 Months Ended
Sep. 30, 2012
Years
Shares under option 481,210
Weighted average exercise price $ 17.52
Weighted average remaining life 3.8
$5.75 - $8.00
  
Shares under option 6,000
Weighted average exercise price $ 7.92
Weighted average remaining life 0.2
Minimum exercise price $ 5.75
Maximum exercise price $ 8.00
$8.01 - $12.00
  
Shares under option 162,000
Weighted average exercise price $ 10.14
Weighted average remaining life 1.3
Minimum exercise price $ 8.01
Maximum exercise price $ 12.00
$12.01 -$18.00
  
Shares under option 117,150
Weighted average exercise price $ 14.77
Weighted average remaining life 2.3
Minimum exercise price $ 12.01
Maximum exercise price $ 18.00
$18.01 - $27.00
  
Shares under option 80,232
Weighted average exercise price $ 23.27
Weighted average remaining life 6.0
Minimum exercise price $ 18.01
Maximum exercise price $ 27.00
$27.01 - $32.16
  
Shares under option 45,384
Weighted average exercise price $ 29.90
Weighted average remaining life 6.2
Minimum exercise price $ 27.01
Maximum exercise price $ 32.16
$18.01 - $27.00 Non-exercisable
  
Shares under option 58,618
Weighted average exercise price non-exercisable $ 24.01
Weighted average remaining life 8.2
Minimum exercise price $ 18.01
Maximum exercise price $ 27.00
$27.01 - $32.16 Non-exercisable
  
Shares under option 11,826
Weighted average exercise price non-exercisable $ 32.16
Weighted average remaining life 7.2
Minimum exercise price $ 27.01
Maximum exercise price $ 32.16