Consolidated and Combined Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
OPERATING ACTIVITIES
Net income	$ 31,183	$ 12,759	$ 14,453
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	18,678	14,984	12,806
Amortization of leasing costs and in-place lease intangibles	4,475	2,585	2,092
Accrued straight-line rental revenue	(1,924)	(2,203)	(1,055)
Amortization of leasing incentives and above or below-market rents	738	632	683
Accrued straight-line ground rent expense	290	315	364
Bad debt expense	131	79	162
Noncash stock compensation	931	917	1,249
Impairment charges	41	15	580
Noncash interest expense	1,006	517	636
Noncash loss on extinguishment of debt	512		644
Gain on real estate dispositions and acquisitions	(18,394)	(2,211)	(9,460)
Change in the fair value of derivatives	229	233	12
Other noncash gain		(42)
Income from real estate joint ventures			(210)
Changes in operating assets and liabilities
Property assets	(2,463)	(1,420)	7,761
Property liabilities	2,326	(1,069)	(2,836)
Construction assets	(17,337)	(5,893)	(2,115)
Construction liabilities	12,664	11,164	(3,591)
Net cash provided by operating activities	33,086	31,362	22,175
INVESTING ACTIVITIES
Development of real estate investments	(52,719)	(98,467)	(41,298)
Tenant and building improvements	(5,157)	(6,362)	(3,920)
Acquisitions of real estate investments	(68,445)	(2,754)	(2,106)
Dispositions of real estate investments	79,566	7,387
Notes receivable issuances	(7,825)
Government development grants	300	300	300
Decrease (increase) in restricted cash	1,580	(1,824)	93
Leasing costs	(2,118)	(2,835)	(1,180)
Leasing incentives	(1,563)	(751)	(266)
Contributions to real estate joint ventures			(81)
Return of capital from real estate joint ventures			511
Net cash used for investing activities	(56,381)	(105,306)	(47,947)
FINANCING ACTIVITIES
Proceeds from sale of common stock	46,462	49,566	203,245
Offering costs	(427)	(416)	(7,937)
Formation transactions			(47,450)
Debt issuances, credit facility and construction loan borrowings	214,407	117,645	106,054
Debt and credit facility repayments, including principal amortization	(206,889)	(63,306)	(197,478)
Debt issuance costs	(1,887)	(448)	(2,738)
Redemption of operating partnership units	(241)
Dividends and distributions	(27,024)	(22,096)	(7,733)
Predecessor contributions			2,218
Predecessor distributions			(12,927)
Net cash provided by financing activities	24,401	80,945	35,254
Net increase in cash and cash equivalents	1,106	7,001	9,482
Cash and cash equivalents, beginning of period	25,883	18,882	9,400
Cash and cash equivalents, end of period	26,989	25,883	18,882
Supplemental cash flow information:
Cash paid for interest	(12,993)	(12,132)	$ (12,617)
Cash refunded (paid) for income taxes	$ 276	$ (821)