Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities:
Net income (loss)	$ 12,741	$ (4,418)	$ (2,636)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	45,471	16,731	5,107
Amortization of deferred financing costs	1,373	1,097	510
Amortization of lease inducements and above/below market lease intangibles	2,577	571	141
Straight-line rental revenue/expense	(9,000)	(4,366)	(675)
Amortization of above market assumed debt	(173)	0	0
(Gain) loss on sale of investment properties	(130)	(32)	2
Equity in income of unconsolidated entity	(104)	(95)	0
Distribution from unconsolidated entity	106	71	0
Change in fair value of derivatives	(166)	(161)	(246)
Provision for bad debts	69	9	30
Non-cash share compensation	3,798	2,422	433
Ziegler shared service amendment payment	0	1,800	0
Impairment on investment properties	0	1,750	0
Change in operating assets and liabilities:
Tenant receivables	(2,836)	(986)	(184)
Other assets	(630)	(3,518)	(1,074)
Accounts payable to related parties	0	0	(1,530)
Accounts payable	(56)	(136)	34
Accrued expenses and other liabilities	8,312	2,556	1,256
Net cash provided by operating activities	61,352	13,295	1,168
Cash Flows from Investing Activities:
Proceeds on sales of investment properties	3,039	235	448
Acquisition of investment properties, net	(752,807)	(501,127)	(125,728)
Capital expenditures on existing investment properties	(4,988)	(900)	0
Pay down of contingent consideration	(999)	0	0
Real estate loans receivable	(22,359)	(15,386)	0
Note receivable	(20,545)	0	0
Leasing commissions	(579)	(100)	(163)
Lease inducements	(2,478)	(1,532)	(1,000)
Net cash used in investing activities	(801,716)	(518,810)	(126,443)
Cash Flows from Financing Activities:
Net proceeds from sale of common shares	545,117	350,384	225,920
Formation transactions	0	0	(354)
Proceeds from credit facility borrowings	620,000	395,200	52,350
Payment on credit facility borrowings	(363,000)	(257,200)	(52,350)
Proceeds from issuance of mortgage debt	0	26,550	162
Principal payments on mortgage debt	(2,022)	(6,549)	(41,832)
Debt issuance costs	(3,105)	(3,887)	(1,428)
Dividends paid – shareholders	(63,720)	(28,104)	(2,161)
Distributions to noncontrolling interest – Operating Partnership	(3,216)	(3,382)	(493)
Distributions to members and partners	(563)	0	(211)
Distributions to noncontrolling interest – partially owned properties	(213)	(185)	(464)
Purchase of OP Units	(1,088)	(7,546)	0
Common shares repurchased and retired	(606)	(321)	0
Net cash provided by financing activities	727,584	464,960	179,139
Net (decrease) increase in cash and cash equivalents	(12,780)	(40,555)	53,864
Cash and cash equivalents, beginning of period	15,923	56,478	2,614
Cash and cash equivalents, end of period	3,143	15,923	56,478
Supplemental disclosure of cash flow information – interest paid during the year	9,550	5,606	3,942
Supplemental disclosure of noncash activity – assumed debt	18,690	15,283	0
Supplemental disclosure of noncash activity – issuance of OP Units and Series A Preferred Units in connection with acquisitions	40,376	28,589	11,535
Supplemental disclosure of noncash activity – contingent consideration	$ 2,718	$ 840	$ 0