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Earnings Per Share
9 Months Ended
Jun. 30, 2019
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The weighted average number of shares outstanding used to compute earnings per share was as follows:
 Three Months Ended June 30,Nine Months Ended June 30,
(shares in thousands)2019 2018 2019 2018 
Basic weighted average shares outstanding64,405 65,630 64,534 65,777 
Dilutive effect of unvested RSUs354 295 266 354 
Denominator for diluted earnings per share64,759 65,925 64,800 66,131