Condensed Combined Statements of Cash Flows (Predecessor, USD $) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
OPERATING ACTIVITIES
Net income	$ 10,335	$ 3,993
Loss from discontinued operations		10
Income from continuing operations	10,335	4,003
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	6,175	5,893
Amortization of deferred leasing costs and in-place lease intangibles	1,004	686
Accrued straight-line rental revenue	(541)	(943)
Amortization of lease incentives and above or below market rents	383	353
Accrued straight-line ground rent expense	176	163
Bad debt expense	117	48
Non-cash stock compensation	769
Impairment charges	533
Non-cash interest expense	337	296
Non-cash loss on extinguishment of debt	508
Gain on acquisitions	(9,460)
Change in the fair value of derivatives	(156)	(221)
Income from real estate joint ventures	(210)	(71)
Changes in operating assets and liabilities:
Property assets	6,269	(450)
Property liabilities	(1,636)	213
Construction assets	(6,716)	3,239
Construction liabilities	(1,037)	(6,570)
Net cash provided by continuing operations	6,850	6,639
Net cash used for discontinued operations		(34)
Net cash provided by operating activities	6,850	6,605
INVESTING ACTIVITIES
Development of real estate investments	(10,734)	(636)
Second generation tenant and building improvements	(1,710)	(1,101)
Acquisitions of real estate investments, net of cash acquired	(2,106)
Decrease in restricted cash	274	115
Contributions to real estate joint ventures	(81)
Return of capital from real estate joint ventures	511	180
Deferred leasing costs	(244)	(330)
Leasing incentives	(243)
Net cash used for continuing operations	(14,333)	(1,772)
Net cash provided by discontinued operations		497
Net cash used for investing activities	(14,333)	(1,275)
FINANCING ACTIVITIES
Proceeds from sale of common stock	203,245
Offering costs	(5,662)
Formation Transactions	(47,221)
Debt issuances and credit facility borrowings	42,700	12,977
Debt and credit facility payments, including principal amortization	(167,710)	(17,137)
Debt issuance costs	(1,823)	(211)
Contributions to Predecessor	2,218	1,742
Distributions from Predecessor	(12,927)	(8,629)
Net cash provided by (used for) continuing operations	12,820	(11,258)
Net cash provided by discontinued operations
Net cash provided by (used for) financing activities	12,820	(11,258)
Net increase (decrease) in cash and cash equivalents	5,337	(5,928)
Cash and cash equivalents, beginning of period	9,400	13,449
Cash and cash equivalents, end of period	14,737	7,521
Supplemental cash flow information:
Cash paid for interest	7,491	8,199
Decrease in distributions payable	$ (528)	$ (825)