Supplemental Information to Statements of Cash Flows (Tables)

3 Months Ended

Mar. 31, 2013

Supplemental Cash Flow Information [Abstract]

Cash Flow Information

Supplemental Information to Statements of Cash Flows

	Three Months Ended March 31, 2013			Three Months Ended March 31, 2012
Interest Expense Capitalized in Connection with Development Activity	$	930		$	390
Supplemental Schedule of Non-Cash Investing and Financing Activities:
Distribution Payable on Common Stock/Operating Partnership Units	$	9,536		$	—
Distribution Payable on Preferred Stock	$	4,289		$	5,214
Exchange of Operating Partnership Units for Common Stock:
Noncontrolling Interest	$	—		$	(99	)
Common Stock	—			—
Additional Paid-in-Capital	—			99
	$	—		$	—
Mortgage Loan Payable Assumed in Conjunction with a Property Acquisition	$	—		$	12,026
Write-off of Fully Depreciated Assets	$	(13,890	)	$	(13,196	)