Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories as of March 31, 2014 and December 31, 2013 were as follows:

In thousands	March 31, 2014		December 31, 2013
Raw materials	$	21,605	$	11,944
Work in process		16,693		14,546
Finished goods		18,014		9,537
		56,312		36,027
Less: Progress billings		(1,454)		(1,110)
Total inventories	$	54,858	$	34,917