Inventories (Net components of inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished goods	$ 1,127,573	$ 1,083,012
Work in process	137,310	137,186
Raw materials	410,868	387,058
Total inventories	$ 1,675,751	$ 1,607,256