Earnings Per Share

Earnings per common share – basic is computed using net income attributable to common shareholders and the weighted average number of shares outstanding – basic. Earnings per common share – diluted includes the effect of potentially dilutive securities. Income from continuing operations attributable to common shareholders includes gain on sale of property in accordance with Securities and Exchange Commission guidelines. Earnings per common share – basic and diluted components for the periods indicated are as follows (in thousands):



	Three Months Ended March 31,
	2018			2017
Numerator:
Income from continuing operations	$	39,924		$	20,633
Gain on sale of property	109,045			15,763
Net income attributable to noncontrolling interests	(2,145		)	(5,570		)
Net income attributable to common shareholders - basic	146,824			30,826
Income attributable to operating partnership units	528			—
Net income attributable to common shareholders - diluted	$	147,352		$	30,826
Denominator:
Weighted average shares outstanding – basic	127,926			127,610
Effect of dilutive securities:
Share options and awards	781			938
Operating partnership units	1,432			—
Weighted average shares outstanding – diluted	130,139			128,548

Anti-dilutive securities of our common shares, which are excluded from the calculation of earnings per common share – diluted, are as follows (in thousands):



	Three Months Ended March 31,
	2018	2017
Operating partnership units	—	1,462