Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories as of March 31, 2015 and December 31, 2014 were as follows:

In thousands	March 31, 2015			December 31, 2014
Raw materials	$	23,520		$	21,248
Work in process	16,831			15,753
Finished goods	14,794			15,348
	55,145			52,349
Less: Progress billings	(1,505		)	(1,108		)
Total inventories	$	53,640		$	51,241