Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of inventory

Inventories consist of the following at December 31:

	2016		2015
Raw materials	$	42,821	$	47,681
Work in process	13,315		13,922
Finished goods	79,733		71,758
	$	135,869	$	133,361