Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

The following table sets forth the computation of basic and diluted earnings per common share for the years ended December 31, 2012, 2011 and 2010 (amounts in thousands):

	Years Ended December 31,
	2012		2011		2010
Numerators:
Net Income Available for Common Shares—Fully Diluted:
Net income available for Common Shares—basic	$	54,778	$	22,775	$	38,354
Amounts allocated to dilutive securities	5,067		3,571		5,903
Net income available for Common Shares—fully diluted	$	59,845	$	26,346	$	44,257
Denominator:
Weighted average Common Shares outstanding—basic	41,174		35,591		30,517
Effect of dilutive securities:
Redemption of Common OP Units for Common Shares	3,938		4,260		4,730
Redemption of Series B Preferred Stock	—		153		—
Employee stock options and restricted shares	319		326		271
Weighted average Common Shares outstanding—fully diluted	45,431		40,330		35,518
Earnings per Common Share—Basic:
Net income available for Common Shares	$	1.33	$	0.64	$	1.26
Earnings per Common Share—Fully Diluted:
Net income available for Common Shares	$	1.32	$	0.64	$	1.25