Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

v3.8.0.1
Earnings Per Share (Details) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Earnings Per Share [Abstract]        
Basic weighted average shares outstanding 65,856 65,549 65,857 65,669
Dilutive effect of employee stock options and unvested RSUs 412 398 366 320
Denominator for diluted earnings per share 66,268 65,947 66,223 65,989