Condensed Consolidated and Combined Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
OPERATING ACTIVITIES
Net income	$ 4,779	$ 10,335
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	6,796	6,175
Amortization of deferred leasing costs and in-place lease intangibles	1,230	1,004
Accrued straight-line rental revenue	(850)	(541)
Amortization of lease incentives and above or below-market rents	317	383
Accrued straight-line ground rent expense	159	176
Bad debt expense	11	117
Noncash stock compensation	522	769
Impairment charges		533
Noncash interest expense	293	337
Noncash loss on extinguishment of debt		508
Gain on acquisitions		(9,460)
Change in the fair value of derivatives	169	(156)
Income from real estate joint ventures		(210)
Changes in operating assets and liabilities:
Property assets	(1,792)	6,269
Property liabilities	(1,056)	(1,636)
Construction assets	(206)	(6,716)
Construction liabilities	(1,375)	(1,037)
Net cash provided by operating activities	8,997	6,850
INVESTING ACTIVITIES
Development of real estate investments	(47,709)	(10,734)
Tenant and building improvements	(3,680)	(1,710)
Acquisitions of real estate investments, net of cash acquired	(2,895)	(2,106)
(Increase) decrease in restricted cash	(777)	274
Contributions to real estate joint ventures		(81)
Return of capital from real estate joint ventures		511
Deferred leasing costs	(874)	(244)
Leasing incentives	(63)	(243)
Net cash used for investing activities	(55,998)	(14,333)
FINANCING ACTIVITIES
Proceeds from sale of common stock		203,245
Offering costs	(243)	(5,662)
Formation Transactions		(47,221)
Debt issuances, credit facility and construction loan borrowings	56,687	42,700
Debt and credit facility payments, including principal amortization	(1,578)	(167,710)
Debt issuance costs	(35)	(1,823)
Predecessor distributions, net		(10,709)
Dividends and distributions	(10,441)
Net cash (used for) provided by financing activities	44,390	12,820
Net (decrease) increase in cash and cash equivalents	(2,611)	5,337
Cash and cash equivalents, beginning of period	18,882	9,400
Cash and cash equivalents, end of period	16,271	14,737
Supplemental cash flow information:
Cash paid for interest	$ 5,795	$ 7,491