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
Jun. 30, 2013
Dec. 31, 2012
Level 2
   
Fair value measurements    
Derivative financial instruments - assets $ 2,587 $ 116
Derivative financial instruments - liabilities (2,663) (12,359)
Total (76) (12,243)
Total
   
Fair value measurements    
Derivative financial instruments - assets 2,587 116
Derivative financial instruments - liabilities (2,663) (12,359)
Total $ (76) $ (12,243)