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Goodwill and Other Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Estimated amortization expense related to intangible assets    
Year ending December 31, 2013 $ 2,228  
Year ending December 31, 2014 2,133  
Year ending December 31, 2015 1,002  
Year ending December 31, 2016 906  
Year ending December 31, 2017 857  
Thereafter 794  
Total $ 7,920 $ 10,317