Goodwill - Additional Information (Details)	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) segment
Goodwill and Intangible Assets Disclosure [Abstract]
Number of operating segments \| segment		5
Goodwill impairment loss \| $	$ 0	$ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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