CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (22,303)	$ (36,033)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	60,862	61,606
Amortization	8,558	7,134
Straight-line rent adjustments	(1,551)	(1,132)
Provision for doubtful accounts	0	1,747
Non-cash lease termination revenue	0	(4,200)
Amortization of deferred compensation	3,811	3,635
Loss on debt extinguishment	4,768	0
(Gains) losses on sales of interests in real estate, net	(1,513)	(748)
Adjustment to gains on sales of interests in non operating real estate	0	25
Equity in income of partnerships	(4,605)	(5,709)
Gain on sale of real estate by equity method investee	(553)	(2,773)
Cash distributions from partnerships	14,912	3,815
Impairment of assets	1,464	34,286
Change in assets and liabilities:
Net change in other assets	5,482	9,041
Net change in other liabilities	(6,984)	4,412
Net cash provided by operating activities	62,348	75,106
Cash flows from investing activities:
Investments in consolidated real estate acquisitions	0	(11,400)
Distribution of financing proceeds from equity method investee	0	123,000
Cash proceeds from sales of real estate	34,080	1,636
Cash proceeds from sale of mortgage	8,000	0
Cash distributions from partnerships of proceeds from real estate sold	879	19,727
Proceeds from insurance claims related to damage to real estate assets	4,475	0
Investments in partnerships	(35,222)	(31,411)
Investments in real estate improvements	(13,913)	(17,187)
Additions to construction in progress	(63,831)	(22,373)
Capitalized leasing costs	(476)	(8,941)
Additions to leasehold improvements and corporate fixed assets	(242)	(31)
Net cash (used in) provided by investing activities	(66,250)	53,020
Cash flows from financing activities:
(Repayments of) proceeds from mortgage loans and finance lease liabilities	(63,599)	10,185
Net borrowings (repayments) under revolving facility	117,000	(53,000)
Dividends paid to common shareholders	(31,208)	(29,553)
Dividends paid to preferred shareholders	(13,688)	(13,688)
Distributions paid to Operating Partnership unit holders and noncontrolling interest	(2,162)	(3,474)
Principal installments on mortgage loans	(8,286)	(9,433)
Payment of deferred financing costs	(78)	(6,514)
Value of shares of beneficial interest issued	642	846
Value of shares retired under equity incentive plans, net of shares issued	(632)	(678)
Net cash (used in) financing activities	(2,011)	(105,309)
Net change in cash, cash equivalents, and restricted cash	(5,913)	22,817
Cash, cash equivalents, and restricted cash, beginning of period	32,445	33,953
Cash, cash equivalents, and restricted cash, end of period	$ 26,532	$ 56,770