Inventories (Tables)

12 Months Ended

Dec. 31, 2015

Inventories [Abstract]

Inventories

Inventories consist of the following:

	December 31,
(in thousands)	2015		2014
Raw materials and supplies	$	23,099	$	17,375
Work-in-process		37,209		33,477
Finished goods		16,628		14,822
Total inventories	$	76,936	$	65,674