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Goodwill and Other Intangible Assets - Estimated Future Intangible Amortization Expense (Details 2) (Customer related intangibles [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Customer related intangibles [Member]
 
Estimated aggregate amortization expense  
2013 $ 683
2014 543
2015 404
2016 265
2017 196
Thereafter $ 213