Company's Organization and Operations (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended			2 Months Ended	3 Months Ended
	May 31, 2013	May 31, 2012	May 11, 2012	Jan. 31, 2013	Mar. 31, 2014 Property
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Operating Partnership interest			1.50%		98.40%
Net proceeds from private placement		$ 208.7		$ 139.1
Common stock issued during period (in shares)	13,700,000
Common stock, offering price per share	$ 21.00
Net proceeds from issuance of common stock	$ 265.1
Number of properties					6,762