Net Income per Share (Tables)

9 Months Ended

Jun. 30, 2017

Calculation of Weighted-Average Shares Outstanding

The following table presents the basic and diluted weighted-average shares outstanding for each period presented:

	Three Months Ended June 30,				Nine Months Ended June 30,
	2017		2016		2017		2016
Weighted-average common shares outstanding, basic		60,311,923		59,615,121		60,131,546		59,293,500
Effect of dilutive securities:
Stock options		627,243		696,059		631,086		714,125
Restricted stock units		411,677		308,629		400,959		269,070
Weighted-average common shares outstanding, diluted		61,350,843		60,619,809		61,163,591		60,276,695

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table includes the number of shares that may be dilutive common shares in the future. These shares were not included in the computation of diluted net income per share because the effect was either anti-dilutive or the requisite performance conditions were not met.

	Three Months Ended June 30,				Nine Months Ended June 30,
	2017		2016		2017		2016
Stock options		247,102		338,769		359,757		561,348
Restricted stock units		—		4,066		82,520		60,293