CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Net (loss) income	$ (8,355)	$ 25,807
Depreciation	33,760	32,222
Amortization	2,710	3,829
Straight-line rent adjustments	(518)	(367)
Provision for doubtful accounts	745	659
Amortization of deferred compensation	2,124	2,213
Gains on sales of real estate		(33,254)
Equity in income of partnerships, net of distributions	(392)	(742)
Impairment of assets and expensed project costs	1,341
Change in assets and liabilities:
Net change in other assets	3,238	775
Net change in other liabilities	(4,695)	(18,225)
Net cash provided by operating activities	29,958	12,917
Cash flows from investing activities:
Investments in consolidated real estate acquisitions	(20,000)
Additions to construction in progress	(6,687)	(6,219)
Investments in real estate improvements	(5,931)	(2,592)
Cash proceeds from sales of real estate		126,840
Additions to leasehold improvements	(270)	(68)
Investments in partnerships	(112)	(71)
Capitalized leasing costs	(1,420)	(1,537)
Increase in cash escrows	1,564	1,584
Cash distributions from partnerships in excess of equity in income	2,299
Net cash (used in) provided by investing activities	(30,557)	117,937
Cash flows from financing activities:
Net borrowings from (repayments of) term loans	130,000	(84,500)
Net (repayments of) borrowings from Revolving Facility	(105,000)	60,000
Proceeds from mortgage loans		76,692
Principal installments on mortgage loans	(3,828)	(4,376)
Repayments of mortgage loans		(161,249)
Payment of deferred financing costs	(1,882)	(1,473)
Dividends paid to common shareholders	(13,727)	(10,162)
Dividends paid to preferred shareholders	(3,962)	(3,962)
Distributions paid to Operating Partnership unit holders	(427)	(406)
Value of shares of beneficial interest issued	1,916	650
Value of shares retired under equity incentive plans, net of shares issued	(4,168)	(2,417)
Net cash used in financing activities	(1,078)	(131,203)
Net change in cash and cash equivalents	(1,677)	(349)
Cash and cash equivalents, beginning of period	34,230	33,990
Cash and cash equivalents, end of period	$ 32,553	$ 33,641