Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Net Revenues by Segment

	Three Months Ended
Net Revenues by Segment	March 31,
(in thousands)	2013			2012
Net Revenues:
Standard Products	$	57,965		$	58,799
Other Products	1,768			2,352
Total net revenues	$	59,733		$	61,151
As a Percentage of Total Net Revenues:
Standard Products	97		%	96		%
Other Products	3			4
Total net revenues	100		%	100		%