Business Combinations - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
Jan. 31, 2019	Jun. 30, 2019
Janrain, Inc.
Business Acquisition [Line Items]
Cash consideration	$ 123.6
Goodwill expected to be tax deductible	$ 42.5
Weighted average useful life	5 years
General and administrative
Business Acquisition [Line Items]
Acquisition-related costs		$ 1.0

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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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.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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