Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventories [Abstract]

Schedule of Inventories

(in thousands)	June 30, 2015		December 31, 2014
Raw materials	$	25,942	$	27,006
Work in process		46,626		43,512
Finished goods		37,062		36,756
Total inventories	$	109,630	$	107,274