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 (loss) income	$ (113,256)	$ 138,417	$ 69,018
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	178,991	176,737	181,549
Non-cash rental and related revenues	25,823	(4,458)	(19,449)
Non-cash interest income	(1,988)	(2,351)	(2,212)
Non-cash interest expense	8,368	8,418	10,080
Stock-based compensation expense	7,914	7,907	9,819
Non-cash lease termination income	0	0	(10,579)
Loss on extinguishment of debt	34,622	531	16,340
Provision for loan losses and other reserves	3,935	1,855	1,238
Net gain on sales of real estate	(12,301)	(2,861)	(2,300)
Impairment of real estate	9,499	4,003	121,819
Other-than-temporary impairment of unconsolidated joint venture	164,126	0	0
Loss from unconsolidated joint venture	27,955	16,599	6,796
Distributions of earnings from unconsolidated joint venture	0	12,795	13,865
Changes in operating assets and liabilities:
Accounts receivable, prepaid expenses and other assets, net	8,223	(6,398)	(9,639)
Accounts payable and accrued liabilities	14,479	3,658	(13,870)
Net cash provided by operating activities	356,390	354,852	372,475
Cash flows from investing activities:
Acquisition of real estate	(99,448)	(92,945)	(51,136)
Origination and fundings of loans receivable	(290,000)	(1,651)	(13,065)
Origination and fundings of preferred equity investments	(9,061)	(20,069)	0
Additions to real estate	(42,651)	(47,354)	(25,451)
Repayments of loans receivable	2,949	4,093	18,367
Repayments of preferred equity investments	1,292	3,419	5,079
Net proceeds from the sales of real estate	100,723	16,751	329,050
Distributions in excess of earnings from unconsolidated joint venture	0	1,305	0
Net cash (used in) provided by investing activities	(336,196)	(136,451)	262,844
Cash flows from financing activities:
Net repayment of revolving credit facility	0	0	(624,000)
Proceeds from issuance of senior unsecured notes	791,520	0	638,779
Principal payments on senior unsecured notes	(300,000)	0	(700,000)
Principal payments on term loans	(455,000)	0	(145,000)
Principal payments on secured debt	(12,661)	(3,072)	(3,436)
Payments of deferred financing costs	(9,317)	(830)	(15,598)
Payments related to extinguishment of debt	(30,196)	0	(10,502)
Distributions to noncontrolling interest	0	0	(316)
Issuance of common stock, net	308,713	80,092	549,328
Dividends paid on common stock	(262,919)	(278,299)	(335,435)
Net cash provided by (used in) financing activities	30,140	(202,109)	(646,180)
Net increase (decrease) in cash, cash equivalents and restricted cash	50,334	16,292	(10,861)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	29	88	346
Cash, cash equivalents and restricted cash, beginning of period	65,523	49,143	59,658
Cash, cash equivalents and restricted cash, end of period	115,886	65,523	49,143
Supplemental disclosure of cash flow information:
Interest paid	85,464	92,589	123,854
Income taxes paid	1,839	2,439	3,911
Supplemental disclosure of non-cash investing activities:
Decrease in loans receivable and other investments due to acquisition of real estate	0	20,731	0
Secured debt assumed by buyer in connection with sale of real estate	$ 0	$ 31,830	$ 0