Goodwill and Other Intangible Assets - Net - Narrative (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 67,200,000		$ 67,200,000
Goodwill impairment	0	$ 0
Amortization expense	$ 4,000,000.0	$ 3,000,000.0

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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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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