Quarterly report pursuant to Section 13 or 15(d)

套期保值活动 (Schedule Of Derivative Instruments In Statement Of Financial Position) (Details)

v2.4.0.8
套期保值活动 (Schedule Of Derivative Instruments In Statement Of Financial Position) (Details) (USD $)
In Thousands, unless otherwise specified
3月. 31, 2014
12月. 31, 2013
General Discussion of Derivative Instruments and 套期保值活动 [Abstract]    
Long-term derivative instruments - asset $ 2,565 $ 521
Short-term derivative instruments - liabilities 29,755 12,280
Long-term derivative instruments - liability $ 4,277 $ 11,366