Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 12, 2011
Related Party Transactions (Textual) [Abstract]
Related Party Transaction, Payment	$ 0.1	$ 0.1	$ 0.1	$ 0.1
Annual advisory fee					$ 0.1