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Business Combinations - Know Your Money Acquisition Intangible Assets Acquired Fair Value and Weighted Average Useful Life (Details) - Know Your Money Acquisition $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	$ 7.4
Weighted Average Useful Life (Years)	4 years 7 months 6 days
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	$ 6.0
Weighted Average Useful Life (Years)	5 years
Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Fair Value	$ 1.4
Weighted Average Useful Life (Years)	3 years

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI https://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464

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-Section 50
-Paragraph 1
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