Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Rental Property:
Land	$ 121,797	$ 104,656
Buildings	758,337	654,518
Tenant improvements	35,996	34,900
Building and land improvements	27,721	22,153
Less: accumulated depreciation	(58,507)	(46,175)
Total rental property, net	885,344	770,052
Cash and cash equivalents	19,763	19,006
Restricted cash	9,274	5,497
Tenant accounts receivable, net	10,949	9,351
Prepaid expenses and other assets	3,268	1,556
Interest rate swaps	3,186
Deferred financing fees, net	5,624	4,704
Leasing commissions, net	2,832	1,674
Goodwill	4,923	4,923
Due from related parties	256	806
Deferred leasing intangibles, net	203,627	187,555
Total assets	1,149,046	1,005,124
Liabilities:
Mortgage notes payable	227,898	229,915
Unsecured credit facility		99,300
Unsecured term loans	225,000	150,000
Accounts payable, accrued expenses and other liabilities	12,873	12,111
Interest rate swaps		480
Tenant prepaid rent and security deposits	7,115	5,686
Dividends and distributions payable	17,259	11,301
Deferred leasing intangibles, net	7,094	6,871
Total liabilities	497,239	515,664
Commitments and contingencies
Equity:
Common stock, par value $0.01 per share, 100,000,000 shares authorized, 42,235,676 and 35,698,582 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	422	357
Additional paid-in capital	527,977	419,643
Common stock dividends in excess of earnings	(90,398)	(61,024)
Accumulated other comprehensive income (loss)	2,806	(371)
Total stockholders' equity	579,807	427,605
Noncontrolling interest	72,000	61,855
Total equity	651,807	489,460
Total liabilities and equity	1,149,046	1,005,124
Series A Preferred Stock
Equity:
Preferred stock	69,000	69,000
Series B Preferred Stock
Equity:
Preferred stock	$ 70,000