CONSOLIDATED STATEMENTS OF CASH FLOWS - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net Income	$ 71,196	$ 72,058
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	85,673	77,027
Stock-based compensation expense	5,033	4,177
Net gain on sales of real estate investments and non-operating real estate	0	(11,406)
Gain on casualties and involuntary conversion on real estate assets	(161)	(100)
Changes in operating assets and liabilities:
Accrued income and other assets	944	2,137
Accounts payable, accrued expenses and prepaid rent	15,642	25,547
Other	1,280	1,256
NET CASH PROVIDED BY OPERATING ACTIVITIES	179,607	170,696
INVESTING ACTIVITIES
Development and value-add properties	(129,997)	(191,872)
Purchases of real estate	(6,231)	(94,414)
Real estate improvements	(25,536)	(27,796)
Net proceeds from sales of real estate investments and non-operating real estate	0	18,102
Proceeds from casualties and involuntary conversion on real estate assets	242	187
Repayments on mortgage loans receivable	21	30
Changes in accrued development costs	(1,901)	3,946
Changes in other assets and other liabilities	(26,280)	(16,169)
NET CASH USED IN INVESTING ACTIVITIES	(189,682)	(307,986)
FINANCING ACTIVITIES
Proceeds from unsecured bank credit facilities	423,270	660,431
Repayments on unsecured bank credit facilities	(458,506)	(716,155)
Proceeds from Unsecured Debt	100,000	190,000
Repayments of Unsecured Debt	(30,000)	(75,000)
Repayments on secured debt	(6,733)	(53,301)
Debt issuance costs	(596)	(252)
Distributions paid to stockholders (not including dividends accrued)	(88,558)	(80,110)
Proceeds from common stock offerings	75,743	213,562
Proceeds from dividend reinvestment plan	0	162
Other	(4,750)	(2,291)
NET CASH PROVIDED BY FINANCING ACTIVITIES	9,870	137,046
DECREASE IN CASH AND CASH EQUIVALENTS	(205)	(244)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	224	374
CASH AND CASH EQUIVALENTS AT END OF PERIOD	19	130
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest, net of amounts capitalized of $7,562 and $6,067 for 2020 and 2019, respectively	24,220	23,229
Cash paid for operating lease liabilities	1,099	962
NON-CASH OPERATING ACTIVITY
Operating lease liabilities arising from obtaining right of use assets	$ 495	$ 15,435