Description of Business (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Sep. 30, 2014 property	Oct. 15, 2013 Common Class A [Member]
Organization And Description Of Business [Line Items]
Number of properties		12
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares issued	28,972,774	29,016,774	14,087,500
Net proceeds from issuance of shares	$ 279
Ownership Interest		78.80%