Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2015

The following is a reconciliation between basic and diluted weighted average shares outstanding for the years ended December 31:



(in thousands, except per share data)	2015			2014			2013
Net income	$	243,318		$	206,896		$	217,112
Net income attributable to unvested awarded performance stock	(5,695		)	(5,186		)	(5,446		)
Net income attributable to common shares	$	237,623		$	201,710		$	211,666
Weighted average number of common shares outstanding – basic	141,113			144,568			144,662
Less unvested awarded performance stock included in weighted average number of common shares outstanding – basic	(3,303		)	(3,624		)	(3,629		)
Weighted average number of common shares outstanding for basic earnings per common share	137,810			140,944			141,033
Dilutive effect of stock options	2,302			1,947			1,591
Weighted average number of shares outstanding – diluted	140,112			142,891			142,624
Net income per share:
Basic	$	1.72		$	1.43		$	1.50
Diluted	$	1.70		$	1.41		$	1.48