Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories consist of the following (in thousands):

	March 31, 2017		December 31, 2016
Raw materials	$	56,290	$	62,037
Work-in-process		3,313		5,289
Total	$	59,603	$	67,326