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Share-Based Compensation (Tables)
 9 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity
A summary of stock option activity during the nine months ended June 30, 2013 is as follows:
 
 
Number of Options (000s)
 
Wtd. Avg. Exercise Price
 
Wtd. Avg. Remaining Contractual Life (Years)
 
Aggregate Intrinsic Value (000s)
Outstanding at October 1, 2012
1,450

 
$
29.74

 
6.1
 
$
22,663

Granted
—

 
$
—

 
 
 
 
Exercised
(338)

 
$
19.08

 
 
 
$
11,546

Forfeited
(20)

 
$
39.31

 
 
 
 
Outstanding at June 30, 2013
1,092

 
$
32.81

 
6.1
 
$
21,022

Exercisable at June 30, 2013
726

 
$
29.33

 
5.2
 
$
16,487
Schedule of Restricted Stock Activity
A summary of restricted stock activity for the nine months ended June 30, 2013 is as follows:
 
 
Number of Shares (000s)
 
Wtd. Avg. Fair Value
Unvested at October 1, 2012
701
 
$
38.54

Granted
347
 
$
46.69

Vested
(162)
 
$
35.49

Forfeited
(27)
 
$
41.82

Unvested at June 30, 2013
859
 
$
42.31