Earnings per Share and Unit (Tables)

3 Months Ended

Mar. 31, 2013

Parent Company [Member]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following summarizes the calculation of basic and diluted earnings per share for the periods ended March 31, 2013 and 2012, respectively (in thousands except per share data):

		Three months ended March 31,
		2013	2012
Numerator:
Continuing Operations
Income from continuing operations	$	21,134	17,959
Gain on sale of real estate		—	1,834
Less: income (loss) attributable to noncontrolling interests		314	(383	)
Income from continuing operations attributable to the Company		20,820	20,176
Less: preferred stock dividends		5,266	13,937
Less: dividends paid on unvested restricted stock		216	231
Income from continuing operations attributable to common stockholders - basic		15,338	6,008
Add: dividends paid on Treasury Method restricted stock		28	14
Income from continuing operations attributable to common stockholders - diluted		15,366	6,022
Discontinued Operations
Income from discontinued operations		—	6,942
Less: income from discontinued operations attributable to noncontrolling interests		—	14
Income from discontinued operations attributable to the Company		—	6,928
Net Income
Net income attributable to common stockholders - basic		15,338	12,936
Net income attributable to common stockholders - diluted	$	15,366	12,950
Denominator:
Weighted average common shares outstanding for basic EPS		90,112	89,497
Incremental shares to be issued under unvested restricted stock		61	30
Weighted average common shares outstanding for diluted EPS		90,173	89,527
Income per common share – basic
Continuing operations	$	0.17	0.07
Discontinued operations		—	0.07
Net income attributable to common stockholders	$	0.17	0.14
Income per common share – diluted
Continuing operations	$	0.17	0.07
Discontinued operations		—	0.07
Net income attributable to common stockholders	$	0.17	0.14

Partnership Interest [Member]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following summarizes the calculation of basic and diluted earnings per unit for the periods ended March 31, 2013 and 2012, respectively (in thousands except per unit data):

		Three months ended March 31,
		2013	2012
Numerator:
Continuing Operations
Income from continuing operations	$	21,134	17,959
Gain on sale of real estate		—	1,834
Less: income attributable to noncontrolling interests		275	192
Income from continuing operations attributable to the Partnership		20,859	19,601
Less: preferred unit distributions		5,266	13,308
Less: dividends paid on unvested restricted units		216	231
Income from continuing operations attributable to common unit holders - basic		15,377	6,062
Add: dividends paid on Treasury Method restricted units		28	14
Income from continuing operations attributable to common unit holders - diluted		15,405	6,076
Discontinued Operations
Income from discontinued operations		—	6,942
Less: income from discontinued operations attributable to noncontrolling interests		—	14
Income from discontinued operations attributable to the Partnership		—	6,928
Net Income
Net income attributable to common unit holders - basic		15,377	12,990
Net income attributable common unit holders - diluted	$	15,405	13,004
Denominator:
Weighted average common units outstanding for basic EPU		90,289	89,674
Incremental units to be issued under unvested restricted stock		61	30
Weighted average common units outstanding for diluted EPU		90,350	89,704
Income per common unit – basic
Continuing operations	$	0.17	0.07
Discontinued operations		—	0.07
Net income attributable to common unit holders	$	0.17	0.14
Income per common unit – diluted
Continuing operations	$	0.17	0.07
Discontinued operations		—	0.07
Net income attributable to common unit holders	$	0.17	0.14