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Acquisitions (Tables)
9 Months Ended
Sep. 30, 2012
Business Acquisition [Line Items]  
Business Acquisition, Pro Forma Information [Table Text Block]
Below are the unaudited pro forma consolidated results of operations of the Predecessor for the nine months ended September 30, 2011 and 2012, as if these acquisitions had occurred on January 1, 2011 (amounts in thousands):
 
 
Nine Months Ended
 
 
September 30,
 
 
2012
2011
Net sales
 
$
773,498

$
558,232

Net income
 
$
8,025

$
9,798