Earnings per Share and Unit (Tables)

12 Months Ended

Dec. 31, 2016

Parent Company Earnings per Share

The following summarizes the calculation of basic and diluted earnings per share:



	Year ended December 31,
(in thousands, except per share data)	2016		2015	2014
Numerator:
Income from operations attributable to common stockholders - basic	$	143,860	128,994	165,875
Income from operations attributable to common stockholders - diluted	$	143,860	128,994	165,938
Denominator:
Weighted average common shares outstanding for basic EPS	100,863		94,391	92,370
Weighted average common shares outstanding for diluted EPS ⁽¹⁾	101,285		94,856	92,404

Income per common share – basic	$	1.43	1.37	1.80
Income per common share – diluted	$	1.42	1.36	1.80

Operating Partnership Earnings per Unit

The following summarizes the calculation of basic and diluted earnings per unit:



	Year ended December 31,
(in thousands, except per share data)	2016		2015	2014
Numerator:
Income from operations attributable to common unit holders - basic	$	144,117	129,234	166,194
Income from operations attributable to common unit holders - diluted	$	144,117	129,234	166,257
Denominator:
Weighted average common units outstanding for basic EPU	101,017		94,546	92,528
Weighted average common units outstanding for diluted EPU ⁽¹⁾	101,439		95,011	92,562

Income per common unit – basic	$	1.43	1.37	1.80
Income per common unit – diluted	$	1.42	1.36	1.80

⁽¹⁾ Includes the dilutive impact of unvested restricted stock and forward equity offering using the treasury stock method.