CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net loss	$ (88,307)	$ (52,978)	$ (42,712)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	81,032	83,212	77,641
Amortization (including write-offs) of deferred financing costs	9,171	8,633	6,170
Amortization of mortgage premiums and discounts, net	(162)	(263)	(1,576)
(Accretion) amortization of market lease and other intangibles, net	(4)	255	236
Bad debt expense	6,464	14,797	12,413
Equity-based compensation	1,319	1,244	470
Gain on sale of investment securities	0	0	0
Loss (gain) on non-designated derivative instruments	68	157	198
Loss (gain) on sales of real estate investments, net	(8,790)	70	(438)
Impairment charges	55,969	20,655	18,993
Changes in assets and liabilities:
Straight-line rent receivable	(3,831)	(7,744)	(6,242)
Prepaid expenses and other assets	(9,667)	(16,888)	(10,345)
Accounts payable, accrued expenses and other liabilities	2,632	2,191	8,688
Deferred rent	1,510	810	471
Net cash provided by operating activities	47,404	54,151	63,967
Cash flows from investing activities:
Property acquisitions and development costs	(91,998)	(128,056)	(188,928)
Deposits returned for unconsummated acquisitions	0	0	50
Deposit received for unconsummated disposition	0	0	1,125
Capital expenditures	(16,719)	(12,910)	(8,278)
Proceeds from sales of real estate investments	62,468	25,903	757
Proceeds from asset acquisition	0	0	865
Net cash used in investing activities	(46,249)	(115,063)	(194,409)
Cash flows from financing activities:
Payments on credit facilities	(368,300)	(80,000)	(326,800)
Proceeds from credit facilities	225,618	147,753	380,170
Proceeds from term loan	150,000	0	0
Proceeds from mortgage notes payable	136,513	118,700	336,897
Payments on mortgage notes payable	(67,797)	(63,263)	(65,335)
Payments for derivative instruments	(2,147)	(131)	(214)
Payments of deferred financing costs	(19,532)	(3,354)	(14,388)
Proceeds from issuance of preferred stock, net	37,617	0	0
Common stock repurchases	(21,113)	(14,202)	(33,599)
Distributions paid on common stock	(51,427)	(55,329)	(76,717)
Contributions from non-controlling interest holders	0	0	472
Distributions to non-controlling interest holders	(346)	(492)	(643)
Net cash, provided by financing activities	19,086	49,682	199,843
Net change in cash, cash equivalents and restricted cash	20,241	(11,230)	69,401
Cash, cash equivalents and restricted cash, beginning of year	91,358	102,588	33,187
Cash, cash equivalents and restricted cash, end of year	111,599	91,358	102,588
Cash, cash equivalents and restricted cash, end of period	91,358	91,358	33,187
Supplemental disclosures of cash flow information:
Cash paid for interest	47,621	43,266	26,097
Cash paid for income taxes	447	407	28
Non-cash investing and financing activities:
Common stock issued through distribution reinvestment plan	27,210	35,737	61,206
Assumption of mortgage notes payable used to acquire investments in real estate	0	0	4,897
Liabilities assumed in real estate acquisitions	0	0	1,056
Asset acquisition (inflows/outflows from operations)	0	0	416
Asset acquisition (inflows/outflows from investing activity)	0	0	(723)
Gain on asset acquisition	$ 0	$ 0	$ 307