Subsequent Events (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	0 Months Ended
	Sep. 30, 2013 property	Sep. 30, 2013	Oct. 11, 2013 Subsequent Event [Member] property
Subsequent Event [Line Items]
Number of properties contributed	3		1
Contribution of Property	$ 18,200	$ 18,216	$ 5,200
Lease term of contributed property	15 years		15 years