Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments (Narrative) (Details)

v3.7.0.1
Derivative Financial Instruments (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Maximum net exposure to counterparty                 $ 1,281    
Sales $ 41,399 $ 39,441 $ 29,142 $ 38,207 $ 44,076 $ 39,256 $ 30,053 $ 41,881 148,189 $ 155,266 $ 158,303
Discontinued operations, net of tax         10,994 $ 1,107 $ (1,607) $ 70   10,564 23,625
Other, net                 533 434 (884)
Accumulated derivative instrument gain $ 724       $ (68)       724 (68)  
Adjustment to accumulated other comprehensive income                 (792) 1,959 $ (2,502)
Reclassification Out Of Accumulated Other Comprehensive Income [Member]                      
Sales                 (351) 5,787  
Discontinued operations, net of tax                 0 $ 297  
Other, net                 (42)    
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Cash Flow Hedges [Member]                      
Sales                 $ (351)