Segment Information (Net Sales by Region or Origin and Long-Lived Assets by Region of Domicile) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 827,567	$ 790,058	$ 766,607
Long-lived assets	138,617	157,704	159,529
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	784,926	741,675	708,917
Long-lived assets	130,407	150,255	151,533
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	42,641	48,383	57,690
Long-lived assets	$ 8,210	$ 7,449	$ 7,996