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Other Intangible Assets (Estimated Amortization Expense for Finite-Lived Intangible Assets) (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Intangible Assets Net Excluding Goodwill [Abstract]  
2016 $ 8,186
2017 7,040
2018 4,601
2019 3,807
2020 $ 2,257