Supplemental Disclosure of Non-Cash Investing and Financing Activities (Tables)

9 Months Ended

Sep. 30, 2012

Supplemental Disclosure of Non-Cash Investing and Financing Activities

Summary of non-cash investing and financing activities

	Nine Months Ended September 30,
	2012		2011
Issuance of common stock as deferred compensation	$	631	$	621
Issuance of units in the operating partnership	40,542		20,222
Redemption of units in the operating partnership	17,467		865
Derivative instruments at fair value	375		1,674
Assignment of debt investment to joint venture	25,362		286,571
Mortgage assigned upon asset sale	59,099		30,000
Tenant improvements and capital expenditures payable	10,056		8,686
Assumption of mortgage loans	—		663,767
Fair value adjustment to noncontrolling interest in operating partnership	44,893		1,168
Accrued acquisition liabilities	4,372		43,000
Issuance of common stock in connection with an acquisition	—		14,997
Consolidation of real estate investments	—		557,314
Transfer to net assets held for sale	86,339		—
Transfer to liabilities related to net assets held for sale	62,792		—
Repayment of mezzanine loan	3,750		—
Redemption of Series E units	31,698		—
Repayment of financing receivable	28,195		—
Investment in joint venture	5,135		—