Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) - Pre-tax and After-tax Components of Other Comprehensive Income (Loss) (Details)

v3.10.0.1
Accumulated Other Comprehensive Income (Loss) - Pre-tax and After-tax Components of Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
After-tax amount      
Pre-tax amount $ (50,217) $ 60,500 $ (54,447)
Tax benefit / (expense) 6,873 (3,590) (965)
Total other comprehensive income (loss) (43,344) 56,910 (55,412)
Defined benefit and other postretirement plans      
After-tax amount      
Pre-tax amount (10,357) (139) 11,664
Tax benefit / (expense) 2,399 38 (4,799)
Total other comprehensive income (loss) (7,958) (101) 6,865
Net loss (gain) from hedging activities      
After-tax amount      
Pre-tax amount (441) (5,799) 7,350
Tax benefit / (expense) 110 2,209 (2,793)
Total other comprehensive income (loss) (331) (3,590) 4,557
Foreign currency translation      
After-tax amount      
Pre-tax amount (39,419) 66,438 (73,461)
Tax benefit / (expense) 4,364 (5,837) 6,627
Total other comprehensive income (loss) $ (35,055) $ 60,601 $ (66,834)