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Goodwill and Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in Goodwill
The table below summarizes changes in goodwill recorded by the Company during the periods ended September 30, 2012 and December 31, 2011:
 
September 30,
2012
 
December 31,
2011
Beginning balance, January 1
$
32,168

 
$
32,168

Additions
—

 
—

Ending balance
$
32,168

 
$
32,168