Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001000697 (http://www.sec.gov/CIK)

Inventory Items, Net Of Reserves Alternative [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Inventory Items, Net Of Reserves Alternative [Abstract]
Inventory, Net of Reserves	Inventories are classified as follows (in thousands):       December 31,       2016   2015 Raw materials   $ 95,430   $ 88,625 Work in progress     16,585     20,901 Finished goods     150,667     153,889   Total inventories   $ 262,682   $ 263,415