CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 6,704	$ 9,415
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization, including amortization of capitalized loan costs	62,527	56,070
(Gain) loss on sale of real estate and other investments	(26,840)	(25,486)
Realized (gain) loss on marketable securities	0	3,378
Share-based compensation expense	2,088	1,521
Loss on termination of interest rate swaps	5,343	0
Other, net	3,275	2,393
Changes in other assets and liabilities:
Other assets	(4,550)	(1,632)
Accounts payable and accrued expenses	7,808	1,599
Net cash provided by (used by) operating activities	56,355	47,258
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sale of marketable securities	0	3,856
Proceeds from repayment of mortgage loans and notes receivable	139	10,020
Increase in mortgages and notes receivable	(17,498)	(18,187)
Proceeds from sale of real estate and other investments	59,233	43,669
Payments for acquisitions of real estate investments	(209,669)	(168,411)
Payments for improvements of real estate investments	(20,655)	(20,411)
Other investing activities	(441)	892
Net cash provided by (used by) investing activities	(188,891)	(148,572)
CASH FLOWS FROM FINANCING ACTIVITIES
Net proceeds from mortgages payable	196,725	0
Principal payments on mortgages payable	(27,650)	(17,233)
Proceeds from revolving lines of credit	173,733	126,578
Principal payments on revolving lines of credit	(269,604)	(41,656)
Net proceeds from notes payable	174,544	0
Principal payments on notes payable	(145,000)	0
Payment for termination of interest rate swap	(3,804)	0
Payments for acquisition of noncontrolling interests – consolidated real estate entities	0	(12,221)
Net proceeds from issuance of common shares	85,864	58,204
Repurchase of Series C preferred shares	0	(5,629)
Distributions paid to common shareholders	(28,205)	(25,962)
Distributions paid to preferred shareholders	(4,821)	(4,921)
Distributions paid to preferred unitholders	(480)	(480)
Distributions paid to noncontrolling interests – Operating Partnership and Series E preferred units	(2,550)	(2,187)
Other financing activities	(334)	(293)
Net cash provided by (used by) financing activities	148,418	74,200
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	15,882	(27,114)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	7,310	46,117
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	23,192	19,003
SUPPLEMENTARY SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	1,239	(297)
Operating partnership units converted to shares	(2,815)	(344)
Distributions declared but not paid to common shareholders	10,891	9,796
Retirement of shares withheld for taxes	929	0
Real estate assets acquired through assumption of debt	20,000	0
Fair value adjustment to debt	2,367	0
Real estate assets acquired through exchange of note receivable	0	17,663
Note receivable exchanged through real estate acquisition	0	(17,663)
Real estate assets acquired through issuance of Series E preferred units	217,513	0
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	20,050	19,527
Cash and cash equivalents	20,816	16,804
Restricted cash	2,376	2,199
Total cash, cash equivalents and restricted cash	$ 23,192	$ 19,003