Subsequent Event (Details) (USD $)			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Senior Notes [Member] Subsequent Event [Member]	May 07, 2014 Senior Notes [Member] Subsequent Event [Member]	Mar. 31, 2014 Secured Debt [Member] Senior secured credit facility [Member]
Subsequent Event [Line Items]
Debt	$ 345,412,000	$ 357,407,000		$ 250,000,000
Interest Rate Percentage				8.50%
Senior Notes, Maturity Date			Jun. 01, 2022
Maximum borrowing capacity under term Loan facility					$ 200,000,000