Inventories (Tables)

9 Months Ended

Sep. 30, 2014

Inventory Disclosure [Abstract]

Schedule of carrying values of inventories

Inventories consisted of the following: 

	At September 30,				At December 31,
(in thousands)	2014		2013		2013
Raw materials	$	77,845	$	75,032	$	81,338
In-process products	19,646		18,070		18,475
Finished products	100,929		94,153		97,915
	$	198,420	$	187,255	$	197,728