Annual report pursuant to Section 13 and 15(d)

Earnings per share

Earnings per share
12 Months Ended
Sep. 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 (in thousands):
  Year ended September 30,
  2019 2018 2017
Weighted average shares outstanding 64,498    65,501    65,632   
Effect of employee stock options and unvested restricted stock awards 322    431    433   
Denominator for diluted earnings per share 64,820    65,932    66,065   
For the years ended September 30, 2019, 2018 and 2017, we excluded approximately 10,000, 5,000 and 9,000 unvested restricted stock units, respectively, from the calculation of diluted earnings per share as the effect of including them would have been anti-dilutive.