CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities
Net income	$ 122,876	$ 91,972	$ 80,763
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	95,729	66,758	45,703
Amortization from above (below) market lease intangibles, net	24,284	15,885	13,501
Amortization from financing and credit facility costs	2,360	1,444	1,284
Stock-based compensation	4,798	4,702	3,980
Provision for impairment	1,919	4,137	1,609
Gain (loss) on settlement of interest rate swaps	16,748	(22,668)	788
(Gain) loss on sale of assets	(14,941)	(8,004)	(13,306)
Write-off of unamortized finance costs upon debt extinguishment	1,250	0	0
(Increase) decrease in accounts receivable	(16,304)	(11,983)	(6,071)
(Increase) decrease in other assets	(3,231)	(1,503)	(2,150)
Increase (decrease) in accounts payable, accrued expenses, and other liabilities	10,827	2,216	606
Net Cash Provided by Operating Activities	246,315	142,956	126,707
Cash Flows from Investing Activities
Acquisition of real estate investments and other assets	(1,400,685)	(1,326,696)	(708,144)
Development of real estate investments and other assets, net of reimbursements (including capitalized interest of $249 in 2021, $109 in 2020, and $410 in 2019)	(41,464)	(19,617)	(24,428)
Payment of leasing costs	(468)	(1,227)	(411)
Net proceeds from sale of assets	56,002	47,698	65,464
Net Cash Used in Investing Activities	(1,386,615)	(1,299,842)	(667,519)
Cash Flows from Financing Activities
Proceeds from Series A preferred stock offering, net	170,308	0	0
Proceeds from common stock offerings, net	744,847	896,118	472,746
Repurchase of common shares	(1,813)	(1,641)	(1,406)
Unsecured revolving credit facility borrowings (repayments), net	68,000	3,000	70,000
Payments of mortgage notes payable	(799)	(3,683)	(24,404)
Payments of unsecured term loans	(240,000)	0	(18,543)
Proceeds from senior unsecured notes	640,623	349,745	125,000
Payment of Series A preferred dividends	(1,529)	0	0
Payment of common stock dividends	(194,296)	(116,112)	(90,257)
Distributions to non-controlling interest	(1,042)	(824)	(782)
Payments for financing costs	(6,704)	(3,919)	(3,360)
Net Cash Provided by Financing Activities	1,177,595	1,122,684	528,994
Net Increase (Decrease) in Cash and Cash Equivalents and Cash Held in Escrow	37,295	(34,202)	(11,818)
Cash and cash equivalents and cash held in escrow, beginning of period	7,955	42,157	53,975
Cash and cash equivalents and cash held in escrow, end of period	45,250	7,955	42,157
Supplemental Disclosure of Cash Flow Information
Cash paid for interest (net of amounts capitalized)	56,150	37,710	29,925
Cash paid for income tax	1,816	1,150	666
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Operating lease right of use assets added upon implementation of leases standard on January 1, 2019	0	0	7,505
Additional lease right of use assets added under new ground leases after January 1, 2019	6,302	1,064	12,167
Operating lease right of use assets disposed of upon acquisition of underlying ground leased land	0	0	(3,059)
Dividends and Distributions Payable	16,881	34,545
Change in accrual of development, construction and other real estate investment costs	(5,537)	10,465	4,330
Preferred Stock [Member]
Cash Flows from Operating Activities
Net income	2,148	0	0
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Dividends and Distributions Payable	620	0	0
Common Stock [Member]
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Dividends and Distributions Payable	$ 16,261	$ 34,545	$ 25,014