Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories were comprised of the following at December 31, 2014 and March 31, 2015:

	December 31, 2014		March 31, 2015
Finished goods	$	45,485	$	47,217
Work in process	36,498		40,342
Raw materials and supplies	84,548		91,387
	$	166,531	$	178,946