CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net income (loss)	$ 11,098	$ (48,605)
Depreciation	62,655	65,517
Amortization	4,066	5,876
Straight-line rent adjustments	(1,331)	(740)
Provision for doubtful accounts	1,260	2,050
Amortization of deferred compensation	2,931	3,227
Loss on Hedge Ineffectiveness	143	512
Gain on sale of non operating real estate	(22,931)	(43)
Equity in income of partnerships in excess of distributions	(3,606)	(2,212)
Impairment of assets and expensed project costs	14,964	35,145
Change in assets and liabilities:
Net change in other assets	8,929	8,069
Net change in other liabilities	2,102	(5,870)
Net cash provided by operating activities	80,280	62,926
Cash flows from investing activities:
Investments in consolidated real estate acquisitions	0	(319,986)
Additions to construction in progress	(28,121)	(14,037)
Investments in real estate improvements	(15,322)	(16,867)
Proceeds from Sale of Real Estate Held-for-investment	131,592
Additions to leasehold improvements	(288)	(341)
Investments in partnerships	(3,953)	(16,194)
Capitalized leasing costs	(3,016)	(3,228)
Decrease (increase) in cash escrows	3,158	(185)
Cash distributions from partnerships in excess of equity in income	4,778	2,926
Net cash provided by (used in) investing activities	88,828	(367,912)
Cash flows from financing activities:
Proceeds from Issuance of Long-term Debt		120,000
Proceeds from Lines of Credit	20,000	270,000
Proceeds from mortgage loans	139,000	102,044
Principal installments on mortgage loans	(8,373)	(10,059)
Repayments of mortgage loans	(280,327)	(139,137)
Payment of deferred financing costs	(3,322)	(2,873)
Dividends paid to common shareholders	(29,170)	(29,031)
Dividends paid to preferred shareholders	(7,924)	(7,924)
Distributions paid to Operating Partnership unit holders and noncontrolling interest	(3,501)	(2,198)
Value of shares of beneficial interest issued	621	706
Value of shares retired under equity incentive plans, net of shares issued	(2,126)	(5,655)
Net cash (used in) provided by financing activities	(175,122)	295,873
Net change in cash and cash equivalents	(6,014)	(9,113)
Cash and cash equivalents, beginning of period	22,855	40,433
Cash and cash equivalents, end of period	$ 16,841	$ 31,320