The Company presents basic and diluted earnings per share (“EPS”) using the two-class method which requires all outstanding unvested share-based payment awards that contain rights to non-forfeitable dividends and therefore participate in undistributed earnings with common stockholders be included in computing earnings per share. Under the two-class method, net income is reduced by the amount of dividends declared in the period for each class of common stock and participating security. The remaining undistributed earnings are then allocated to common stock and participating securities, based on their respective rights to receive dividends. Restricted stock awards granted to certain employees and directors contain non-forfeitable rights to dividends at the same rate as common stock, and are considered participating securities. Basic EPS has been computed by dividing net income by the weighted-average number of common shares outstanding.

The following is a reconciliation of the numerator and denominator of the diluted net income per share computations for the periods presented below.



	Year Ended September 30,
(in millions, except share amounts)	2019			2018			2017
Numerator:
Net income	$	85.1		$	55.5		$	6.4
Less: Allocation to participating securities	(1.5		)	(0.9		)	(0.1		)
Net income allocated to common stockholders	$	83.6		$	54.6		$	6.3
Denominator:
Weighted average number of:
Common shares outstanding	18,738,905			18,549,011			18,395,987
Dilutive potential common shares outstanding:
Share-based awards	275,490			385,819			291,367
Diluted shares outstanding	19,014,395			18,934,830			18,687,354

The dilutive effect of share-based awards is reflected in diluted net income per share by application of the treasury stock method, which includes consideration of unamortized share-based compensation expense.

Options to purchase 907,089, 92,627 and 230,135 shares of common stock for fiscal years ended September 30, 2019, 2018, and 2017, respectively, were excluded from the calculation of diluted earnings per share because they would have been anti-dilutive.