Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Components Of Inventories

The components of inventories as of March 31, 2017 and December 31, 2016 were:

	March 31, 2017		December 31, 2016
Raw materials and component parts	$	158,236	$	154,278
Work in process	38,460		34,832
Finished goods	61,204		63,749
Total	$	257,900	$	252,859