Condensed Consolidated Balance Sheets Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Tenant and other receivables allowance	$ 2,401	$ 1,427
Deferred rent receivables allowance	$ 147	$ 420
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Preferred unit, liquidation preference	$ 16.62	$ 16.62
Stock issued	1,560,360	1,560,360
Capital units, outstanding	1,560,360	1,560,360
Common Class A
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	113,135,350	106,044,560
Common stock, shares outstanding	113,119,634	106,030,449
Common Class B
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	1,134,252	1,161,438
Common stock, shares outstanding	1,134,252	1,161,438