CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
OPERATING ACTIVITIES
Net income	$ 200,548	$ 186,274	$ 157,638
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	171,078	153,638	127,099
Stock-based compensation, net of forfeitures	8,965	8,292	7,511
Gain on sales of real estate investments	(17,965)	(40,999)	(38,859)
Gain on sales of non-operating real estate	(446)	0	0
Gain on involuntary conversion and business interruption claims	(4,187)	0	0
Changes in operating assets and liabilities:
Accrued income and other assets	(15,415)	(9,291)	(11,572)
Accounts payable, accrued expenses and prepaid rent	(5,922)	17,176	13,298
Other	1,546	1,411	1,377
NET CASH PROVIDED BY OPERATING ACTIVITIES	338,202	316,501	256,492
INVESTING ACTIVITIES
Development and value-add properties	(388,213)	(494,073)	(418,855)
Purchases of real estate	(165,116)	(2,049)	(108,149)
Real estate improvements	(51,116)	(40,851)	(36,665)
Net proceeds from sales of real estate investments and non-operating real estate	41,539	51,006	44,260
Leasing commissions	(32,004)	(37,272)	(33,301)
Proceeds from involuntary conversion on real estate assets	5,029	0	0
Changes in accrued development costs	12,163	4,211	21,678
Changes in other assets and other liabilities	7,660	(2,120)	1,769
NET CASH USED IN INVESTING ACTIVITIES	(570,058)	(521,148)	(529,263)
FINANCING ACTIVITIES
Proceeds from unsecured bank credit facilities	471,624	942,173	625,520
Repayments on unsecured bank credit facilities	(641,624)	(981,383)	(541,310)
Proceeds from unsecured debt	100,000	525,000	175,000
Repayments on unsecured debt	(115,000)	(75,000)	(40,000)
Repayments on secured debt	(1,970)	(60,096)	(76,920)
Debt issuance costs	(1,818)	(2,067)	(2,678)
Distributions paid to stockholders (not including dividends accrued)	(225,625)	(193,936)	(131,759)
Proceeds from common stock offerings	692,312	75,622	273,409
Common stock offering related costs	(834)	(247)	(312)
Other	(5,002)	(29,756)	(3,807)
NET CASH PROVIDED BY FINANCING ACTIVITIES	272,063	200,310	277,143
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	40,207	(4,337)	4,372
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	56	4,393	21
CASH AND CASH EQUIVALENTS AT END OF YEAR	40,263	56	4,393
SUPPLEMENTAL CASH FLOW INFORMATION
Cash paid for interest, net of amount capitalized of $16,235, $12,393, and $9,028 for 2023, 2022, and 2021, respectively	47,228	34,110	31,658
Capitalized interest	16,235	12,393	9,028
Cash paid for operating lease liabilities	2,042	1,793	1,707
Common stock issued in the purchase of real estate	0	303,682	0
Debt assumed in the purchase of real estate	0	60,000	0
NON-CASH OPERATING ACTIVITY
Operating lease liabilities arising from obtaining right of use assets	$ 2,379	$ 559	$ 13,056