Inventories (Tables)

3 Months Ended

Mar. 31, 2015

Inventories [Abstract]

Schedule of Inventories

(in thousands)	March 31, 2015		December 31, 2014
Raw materials	$	24,612	$	27,006
Work in process		43,639		43,512
Finished goods		36,569		36,756
Total inventories	$	104,820	$	107,274