Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Components of Inventory, Net of Reserves

The components of inventory, net of reserves, were:

In thousands	June 30, 2018		December 31, 2017
Raw materials	$	454,678	$	378,481
Work-in-progress	187,870		167,390
Finished goods	221,245		196,763
Total inventories	$	863,793	$	742,634