Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories are comprised of the following:

	March 31,		December 31,
	2014		2013
Raw materials	$	16,195	$	15,448
Work in process		10,744		9,672
Finished goods		30,510		29,410
	$	57,449	$	54,530