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Other Assets, Net - Schedule of Estimated Amortization of Identified Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
2018 $ 22,338  
2019 19,167  
2020 16,136  
2021 12,607  
2022 11,248  
Thereafter 44,971  
Identified intangible assets, net $ 126,467 $ 3,063