CONSOLIDATED STATEMENTS OF CASH FLOWS - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
OPERATING ACTIVITIES
Net Income	$ 72,058	$ 70,053
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	77,027	67,463
Stock-based compensation expense	4,177	4,033
Net gain on sales of real estate investments and non-operating real estate	(11,406)	(14,359)
Gain on casualties and involuntary conversion on real estate assets	(100)	(1,150)
Changes in operating assets and liabilities:
Accrued income and other assets	2,137	628
Accounts payable, accrued expenses and prepaid rent	25,547	13,997
Other	1,256	1,330
NET CASH PROVIDED BY OPERATING ACTIVITIES	170,696	141,995
INVESTING ACTIVITIES
Development and value-add properties	(191,872)	(118,489)
Purchases of real estate	(94,414)	(52,934)
Real estate improvements	(27,796)	(26,779)
Net proceeds from sales of real estate investments and non-operating real estate	18,102	24,508
Proceeds from casualties and involuntary conversion on real estate assets	187	1,483
Repayments on mortgage loans receivable	30	1,977
Changes in accrued development costs	3,946	1,896
Changes in other assets and other liabilities	(16,169)	(9,804)
NET CASH USED IN INVESTING ACTIVITIES	(307,986)	(178,142)
FINANCING ACTIVITIES
Proceeds from unsecured bank credit facilities	660,431	311,641
Repayments on unsecured bank credit facilities	(716,155)	(336,789)
Proceeds from Unsecured Debt	190,000	60,000
Repayments on Unsecured Debt	(75,000)	(50,000)
Repayments on secured debt	(53,301)	(8,410)
Debt issuance costs	(252)	(1,857)
Distributions paid to stockholders (not including dividends accrued)	(80,110)	(45,449)
Proceeds from common stock offerings	213,562	112,325
Proceeds from dividend reinvestment plan	162	166
Other	(2,291)	(5,239)
NET CASH PROVIDED BY FINANCING ACTIVITIES	137,046	36,388
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(244)	241
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	374	16
CASH AND CASH EQUIVALENTS AT END OF PERIOD	130	257
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest, net of amounts capitalized of $6,067 and $4,545 for 2019 and 2018, respectively	23,229	23,112
Cash paid for operating lease liabilities	962	0
NON-CASH OPERATING ACTIVITY
Operating lease liabilities arising from obtaining right of use assets	$ 15,435	$ 0