Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Tenant and other receivables allowance	$ 2,742	$ 1,427
Deferred rent receivables allowance	$ 99	$ 420
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	50,000,000	50,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Preferred unit, liquidation preference (UDS per share)	$ 16.62	$ 16.62
Stock issued (shares)	1,560,360	1,560,360
Capital units, outstanding (shares)	1,560,360	1,560,360
Class A Common Stock
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	400,000,000	400,000,000
Common stock, shares issued (shares)	116,839,022	106,044,560
Common stock, shares outstanding (shares)	116,823,306	106,030,449
Class B Common Stock
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	50,000,000	50,000,000
Common stock, shares issued (shares)	1,130,728	1,161,438
Common stock, shares outstanding (shares)	1,130,728	1,161,438