Inventories (Net components of inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Finished goods	$ 1,083,012	$ 1,021,188
Work in process	137,186	129,471
Raw materials	387,058	392,654
Total inventories	$ 1,607,256	$ 1,543,313