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Segment Information (Tables)
12 Months Ended
Dec. 31, 2012
Segment Information [Abstract]  
Net Sales By Region Or Origin And Long-Lived Assets By Region Of Domicile
    2012   2011   2010
Net sales:            
North America $ 741,675 $ 708,917 $ 585,549
Europe   48,383   57,690   51,905
Total $ 790,058 $ 766,607 $ 637,454
 
Long-lived assets:            
North America $ 582,914 $ 569,038 $ 531,740
Europe   33,522   34,163   36,773
Total $ 616,436 $ 603,201 $ 568,513