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Earnings Per Share - Diluted Shares Calculation (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Earnings Per Share [Abstract]        
Basic shares 31,813 26,482 31,793 26,473
Shares Issuable upon Conversion of TEUs 0 5,221 0  
Shares Issuable upon vesting/exercise of stock awards/options 7 97 4  
Diluted shares 31,820 31,800 31,797 26,473