Other Income (Expense) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Other Income and Expenses [Abstract]    
Other income (expense) $ 490 $ (19)
Foreign currency loss (18,530) (6,552)
Other income (expense), net $ (18,040) $ (6,571)