Stockholders' Equity (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Stockholders' Equity [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 991,000 763,000
Translation adjustment $ (55,340) $ 3,199