XML 62 R51.htm IDEA: XBRL DOCUMENT v2.4.0.6
Derivatives (Details) (Derivatives not designated as hedging instruments [Member], USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Derivatives not designated as hedging instruments [Member]
   
Summary of derivatives and their fair values    
Notional Amount $ 50,000  
Strike 5.2175%  
Trade Date Oct. 01, 2008  
Maturity Date Oct. 01, 2013  
Fair Value of Derivative Liabilities $ (1,433) $ (1,667)