Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Inventory, Raw Materials, Net of Reserves	$ 101,402	$ 104,104
Inventory, Work in Process, Net of Reserves	48,883	52,909
Inventory, Finished Goods, Net of Reserves	179,670	154,150
Total	$ 329,955	$ 311,163	[1]

[1] December 31, 2018 balances were derived from audited consolidated financial statements.