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Segment Information - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2019 segment
Segment Reporting [Abstract] |
Number of Reportable Segments | 5
Disclosure on Geographic Areas, Description of Revenue from External Customers | Over 95% of the Company's revenues are generated in the United States ("U.S."). The remaining revenues are generated in the United Kingdom, continental Europe and other international locations.

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- Definition Disclosure about revenues from external customers (1) attributed to the entity's country of domicile and (2) attributed to all foreign countries in total from which the entity derives revenues. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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