Business Combinations - Intangible Assets and Goodwill (Details) - Knight Capital $ in Thousands	Oct. 25, 2019 USD ($)
Acquisitions
Intangible assets	$ 5,880
Weighted Average Amortization Life	6 years
Internally developed software
Acquisitions
Intangible assets	$ 3,800
Weighted Average Amortization Life	6 years
Broker network
Acquisitions
Intangible assets	$ 1,200
Weighted Average Amortization Life	4 years 6 months
Trade name
Acquisitions
Intangible assets	$ 880
Weighted Average Amortization Life	6 years

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.

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- 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

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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