Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ 53,722	$ (7,506)	$ 71,982
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (including below-market ground leases)	51,257	50,378	55,394
Amortization of deferred financing costs	2,436	2,095	2,052
Loss on extinguishment of debt	0	0	10,827
Unrealized losses on other real estate related investments, net	6,485	7,102	0
Amortization of stock-based compensation	5,153	5,758	10,832
Straight-line rental income	29	(17)	(32)
Amortization of below market rent	(384)	0	0
Adjustment for collectibility of rental income	0	1,417	0
Noncash interest income	(407)	(1,165)	(155)
(Gain) loss on sale of real estate, net	(2,218)	3,769	77
Impairment of real estate investments	36,301	79,062	0
Provision for loan losses, net	0	3,844	0
Change in operating assets and liabilities:
Accounts and other receivables	(9)	604	(562)
Prepaid expenses and other assets, net	(21)	123	399
Accounts payable, accrued liabilities and deferred rent liabilities	2,423	(1,049)	6,057
Net cash provided by operating activities	154,767	144,415	156,871
Cash flows from investing activities:
Acquisitions of real estate, net of deposits applied	(233,776)	(21,915)	(192,718)
Purchases of equipment, furniture and fixtures and improvements to real estate	(10,976)	(7,292)	(6,013)
Preferred equity investments	(1,782)	0	0
Investment in real estate related investments and other loans receivable	(60,319)	(149,650)	(1,253)
Principal payments received on real estate related investments and other loans receivable	26,525	6,308	393
Escrow deposits for potential acquisitions of real estate	(3,800)	0	0
Net proceeds from sales of real estate	16,313	45,149	6,958
Net cash used in investing activities	(267,815)	(127,400)	(192,633)
Cash flows from financing activities:
Proceeds from the issuance of common stock, net	634,446	47,236	22,946
Proceeds from the issuance of senior unsecured notes payable	0	0	400,000
Borrowings under unsecured revolving credit facility	185,000	160,000	220,000
Payments on senior unsecured notes payable	0	0	(300,000)
Payments on unsecured revolving credit facility	(310,000)	(115,000)	(190,000)
Payments on debt extinguishment and deferred financing costs	(68)	(5,361)	(14,095)
Net-settle adjustment on restricted stock	(1,479)	(4,469)	(1,331)
Dividends paid on common stock	(115,492)	(106,138)	(100,782)
Contributions from noncontrolling interests	1,952	0	0
Distributions to noncontrolling interests	(41)	0	0
Net cash provided by (used in) financing activities	394,318	(23,732)	36,738
Net increase (decrease) in cash and cash equivalents	281,270	(6,717)	976
Cash and cash equivalents as of the beginning of period	13,178	19,895	18,919
Cash and cash equivalents as of the end of period	294,448	13,178	19,895
Supplemental disclosures of cash flow information:
Interest paid	40,028	25,912	22,838
Supplemental schedule of noncash investing and financing activities:
Increase in dividends payable	8,982	1,265	2,033
Right-of-use asset obtained in exchange for new operating lease obligation	369	0	0
Transfer of pre-acquisition costs to acquired assets	0	7	358
Sale of real estate settled with notes receivable	$ 2,000	$ 12,000	$ 0