Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Equity (Changes In Accumulated Other Comprehensive Income (Loss)) (Details)

v3.6.0.2
Equity (Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Beginning balance, Total $ (6,307) $ (6,895)  
Total other comprehensive income (loss) 4,538 588 $ 2,995
Ending balance, Total (1,769) (6,307) (6,895)
Net Change In Fair Value Of Derivatives [Member]      
Beginning balance, Total (18) (356)  
Total other comprehensive income (loss) 5,990 338  
Ending balance, Total 5,972 (18) (356)
Actuarial Gain (Loss) On Pension Obligations [Member]      
Beginning balance, Total (6,289) (6,539)  
Total other comprehensive income (loss) (1,452) 250  
Ending balance, Total $ (7,741) $ (6,289) $ (6,539)