CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Net (loss) income	$ (32,406)	$ 16,798
Depreciation	68,415	65,430
Amortization	4,949	6,995
Straight-line rent adjustments	(823)	(757)
Provision for doubtful accounts	629	1,103
Amortization of deferred compensation	5,463	4,422
Loss on Hedge Ineffectiveness	1,238	2,693
Gains (Losses) on Sales of Investment Real Estate	99	0
Gains on sales of real estate	0	(33,254)
Equity in income of partnerships, net of distributions	(853)	(1,623)
Impairment of assets and expensed project costs	17,659	0
Change in assets and liabilities:
Net change in other assets	14,739	10,330
Net change in other liabilities	4,855	(14,372)
Net cash provided by operating activities	83,766	57,765
Cash flows from investing activities:
Investments in consolidated real estate acquisitions	(20,000)	(60,879)
Additions to construction in progress	(17,493)	(13,775)
Investments in real estate improvements	(19,502)	(11,224)
Cash proceeds from sales of real estate	23,600	126,895
Additions to leasehold improvements	(736)	(145)
Investments in partnerships	(3,651)	(166)
Capitalized leasing costs	(2,829)	(2,722)
Increase in cash escrows	(211)	(470)
Cash distributions from partnerships in excess of equity in income	1,482	577
Net cash (used in) provided by investing activities	(39,340)	38,091
Cash flows from financing activities:
Borrowings from (repayments of) term loans	130,000	(182,000)
Net (repayments of) borrowings from revolving facility	(130,000)	35,000
Proceeds from mortgage loans		76,692
Principal installments on mortgage loans	(7,849)	(8,447)
Repayments of mortgage loans		(217,524)
Payment of deferred financing costs	(1,882)	(3,613)
Dividends paid to common shareholders	(27,466)	(22,402)
Dividends paid to preferred shareholders	(7,924)	(7,924)
Distributions paid to Operating Partnership unit holders	(852)	(813)
Value of shares of beneficial interest issued	2,691	828
Value of shares retired under equity incentive plans, net of shares issued	(4,633)	(2,418)
Net cash used in financing activities	(47,915)	(112,321)
Net change in cash and cash equivalents	(3,489)	(16,465)
Cash and cash equivalents, beginning of period	34,230	33,990
Cash and cash equivalents, end of period	30,741	17,525
Proceeds from Issuance of Common Stock	$ 0	$ 220,300