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v3.20.4

Summary of Significant Accounting Policies - Goodwill (Details) | 12 Months Ended
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Dec. 31, 2020 segment
Accounting Policies [Abstract] |
Number of Reporting Units | 6

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
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Period Type: | duration