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	$ (85,440)	$ (75,510)	$ (88,307)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	79,926	81,053	81,032
Amortization (including write-offs) of deferred financing costs	4,427	4,059	9,171
Amortization of terminated swap	846	846	0
Amortization of mortgage premiums and discounts, net	55	60	(162)
(Accretion) amortization of market lease and other intangibles, net	(198)	(80)	(4)
Bad debt expense	1,094	2,708	6,464
Equity-based compensation	1,329	1,345	1,319
Loss (gain) on non-designated derivative instruments	(37)	102	68
(Gain) loss on sales of real estate investments, net	(3,648)	(5,230)	(8,790)
Impairment charges	40,951	36,446	55,969
Deferred tax valuation allowance	(483)	4,641	0
Changes in assets and liabilities:
Straight-line rent receivable	(761)	(2,409)	(3,831)
Prepaid expenses and other assets	(2,139)	(63)	(9,667)
Accounts payable, accrued expenses and other liabilities	1,252	(4,554)	2,632
Deferred rent	1,705	(1,607)	1,510
Net cash provided by operating activities	38,879	41,807	47,404
Cash flows from investing activities:
Property acquisitions and development costs	(159,300)	(94,984)	(91,998)
Capital expenditures and other assets acquired	(19,071)	(21,892)	(16,719)
Proceeds from sales of real estate investments	130,449	34,385	62,468
Net cash used in investing activities	(47,922)	(82,491)	(46,249)
Cash flows from financing activities:
Payments on credit facilities	(298,804)	(26,091)	(368,300)
Proceeds from credit facilities	125,000	95,000	225,618
Proceeds from term loan	0	0	150,000
Proceeds from mortgage notes payable	42,750	0	136,513
Payments on mortgage notes payable	(1,264)	(1,048)	(67,797)
Payments for derivative instruments	(85)	(97)	(2,147)
Payments of deferred financing costs	(1,490)	(2,241)	(19,532)
Common stock repurchases	0	(10,539)	(21,113)
Distributions paid on common stock	0	(31,354)	(51,427)
Dividends paid on preferred stock	(5,144)	(2,399)	0
Buyout of non-controlling interest holders	0	(583)	0
Distributions to non-controlling interest holders	(46)	(201)	(346)
Net cash, provided by financing activities	4,079	19,431	19,086
Net change in cash, cash equivalents and restricted cash	(4,964)	(21,253)	20,241
Cash, cash equivalents and restricted cash, beginning of year	90,346	111,599	91,358
Cash, cash equivalents and restricted cash, end of year	85,382	90,346	111,599
Cash and cash equivalents	59,738	72,357	95,691
Restricted cash	25,644	17,989	15,908
Cash, cash equivalents and restricted cash, end of period	85,382	90,346	111,599
Supplemental disclosures of cash flow information:
Cash paid for interest	42,815	47,878	47,621
Cash paid for income taxes	311	315	447
Non-cash investing and financing activities:
Common stock issued through distribution reinvestment plan	0	14,604	27,210
Common stock issued through stock dividends	81,371	19,659	0
Accrued capital expenditures (payable)	0	1,287	0
Accrued offering costs on Series B Preferred Stock	78	0	0
Mortgage assumed in acquisition	0	13,883	0
Series A Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of Preferred Stock, net	56,265	(1,016)	37,617
Series B Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of Preferred Stock, net	$ 86,897	$ 0	$ 0