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Goodwill and Related Intangible Assets (Schedule of Future Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2015 $ 8,604
2016 8,272
2017 7,715
2018 7,044
2019 $ 6,532