Business and Organization (Details 1) (USD $)	0 Months Ended	6 Months Ended		1 Months Ended	34 Months Ended		33 Months Ended	0 Months Ended
	Aug. 07, 2012	Jun. 30, 2013 Item	Dec. 31, 2012	Aug. 08, 2013 Subsequent event	Aug. 08, 2013 Subsequent event	Aug. 07, 2012 Maximum	Jun. 30, 2013 Primary offering	Oct. 12, 2010 Sponsor	Feb. 11, 2013 Sponsor Primary offering
Formation and organization
Common stock, shares authorized		400,000,000	400,000,000
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred stock, shares authorized		50,000,000	50,000,000
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Number of shares of common stock issued				226,257			286,540	22,223	222,223
Value of common stock issued		$ 2,541,279		$ 2,300,000	$ 4,900,000		$ 2,600,000	$ 200,000	$ 2,000,000
Common stock filed in a registration statement with SEC, for issuance pursuant to offering (in shares)						110,526,315
Common stock filed in a registration statement with SEC, for issuance pursuant to the primary offering (in shares)	100,000,000
Common stock filed in a registration statement with SEC, for issuance pursuant to DRP (in shares)	10,526,315
Limited partnership interest in operating partnership		93.14%
Number of employees		0