Cash and Cash Equivalents (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jun. 08, 2011
Cash and Cash Equivalents [Line Items]        
Cash denominated in U.S. dollars $ 24,628 $ 34,386    
Money market funds denominated in U.S. dollars 3,184 22,352    
Cash in currency other than U.S. dollars 5,774 222    
Cash and Cash Equivalents, at Carrying Value $ 33,586 $ 56,960 $ 5,212 $ 0