Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v2.4.0.8
Fair Value Measurements (Details) (Recurring, USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Level 2
   
Fair value measurements    
Derivative financial instruments - assets $ 1,954 $ 116
Derivative financial instruments - liabilities (6,491) (12,359)
Total (4,537) (12,243)
Total
   
Fair value measurements    
Derivative financial instruments - assets 1,954 116
Derivative financial instruments - liabilities (6,491) (12,359)
Total $ (4,537) $ (12,243)