Current report filing

Fair Value of Financial Instruments (Details)

v2.4.0.8
Fair Value of Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Dec. 21, 2012
Oct. 17, 2012
Debt Instrument [Line Items]        
Unamortized discount $ 3,500 $ 3,595    
Unamortized premium 500 490    
Fair value of notes 319,200 308,250    
Senior Notes [Member]
       
Debt Instrument [Line Items]        
Carrying value of debt 297,000 296,895    
Unamortized discount       3,665
Unamortized premium     $ 500