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Goodwill and Intangible Assets (Schedule of Amortization of Intangibles for the Next Five Years) (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2017 $ 128,561
2018 106,175
2019 84,389
2020 59,125
2021 $ 50,845