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Goodwill and Other Intangible Assets - Narrative (Details)
$ in Millions
Jun. 30, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Estimated amortization expense of intangible assets for the remainder of 2017 $ 10.8
Estimated amortization expense of intangible assets for 2018 21.6
Estimated amortization expense of intangible assets for 2019 19.9
Estimated amortization expense of intangible assets for 2020 18.5
Estimated amortization expense of intangible assets for 2021 16.2
Estimated amortization expense of intangible assets for 2022 16.1
Estimated amortization expense of intangible assets for later years $ 149.7