Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Rental Property:
Land	$ 134,399	$ 104,656
Buildings	871,422	654,518
Tenant improvements	36,994	34,900
Building and land improvements	36,231	22,153
Less: accumulated depreciation	(71,653)	(46,175)
Total rental property, net	1,007,393	770,052
Cash and cash equivalents	6,690	19,006
Restricted cash	6,806	5,497
Tenant accounts receivable, net	13,790	9,351
Prepaid expenses and other assets	2,594	1,556
Interest rate swaps	3,924
Deferred financing fees, net	5,467	4,704
Leasing commissions, net	3,542	1,674
Goodwill	4,923	4,923
Due from related parties	185	806
Deferred leasing intangibles, net	214,967	187,555
Total assets	1,270,281	1,005,124
Liabilities:
Mortgage notes payable	225,591	229,915
Unsecured credit facility	80,500	99,300
Unsecured term loans	250,000	150,000
Accounts payable, accrued expenses and other liabilities	18,574	12,111
Interest rate swaps		480
Tenant prepaid rent and security deposits	8,972	5,686
Dividends and distributions payable	5,166	11,301
Total liabilities	595,717	515,664
Commitments and contingencies
Equity:
Common stock, par value $0.01 per share, 100,000,000 shares authorized, 44,764,377 and 35,698,582 shares issued and outstanding at December 31, 2013 and December 31, 2012, respectively	447	357
Additional paid-in capital	577,039	419,643
Common stock dividends in excess of earnings	(116,877)	(61,024)
Accumulated other comprehensive income (loss)	3,440	(371)
Total stockholders' equity	603,049	427,605
Noncontrolling interest	71,515	61,855
Total equity	674,564	489,460
Total liabilities and equity	1,270,281	1,005,124
Series A Preferred Stock
Equity:
Preferred stock	69,000	69,000
Series B Preferred Stock
Equity:
Preferred stock	$ 70,000