Inventories (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories are comprised of the following amounts:

	June 30, 2017		December 31, 2016
Raw materials	$	52,916	$	49,205
Work in process		34,786		31,348
Finished goods		36,000		34,298
Inventories	$	123,702	$	114,851