Amount per share of dividend received from equity method investment.

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The tax expense (benefit) on gain (loss) on disposal of equity method investments.

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Fair value portion of investments net of tax accounted under the equity method.

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The number of shares of the subsidiary or equity method investee sold.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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Fair value portion of investments accounted under the equity method.

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Balance held at close of period in number of shares.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

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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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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Investments in Unconsolidated Affiliates - Narrative (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions					3 Months Ended		9 Months Ended
	Sep. 22, 2022	Feb. 15, 2022	Feb. 14, 2022	Jan. 08, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jan. 07, 2021
Schedule of Equity Method Investments [Line Items]
Effective tax rate					18.00%	25.50%	11.60%	20.40%
Optimal Blue Holdco, LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire interest in affiliate			$ 433.5
Fair value of investment			$ 722.5
Equity Method Investments, Number of Shares Sold		36.4
D&B Investment
Schedule of Equity Method Investments [Line Items]
Shares owned					18.5		18.5
Equity Method Investment, Realized Gain (Loss) on Disposal, Tax		$ 102.6
D&B Investment
Schedule of Equity Method Investments [Line Items]
Ownership interest (percent)					4.00%		4.00%
Share price (in USD per share)					$ 12.39		$ 12.39
Fair value of investment					$ 228.9		$ 228.9
Effective tax rate							25.30%
Estimated after-tax value of investment					$ 213.0		$ 213.0
Equity Method Investment, Realized Gain (Loss) on Disposal		$ 305.4					$ 305.4
Amount of cash dividend	$ 0.9
Cash dividend	$ 0.05
D&B Investment \| Maximum
Schedule of Equity Method Investments [Line Items]
Ownership interest (percent)					20.00%		20.00%
D&B Investment \| Bisnode Business Information Group AB
Schedule of Equity Method Investments [Line Items]
Issuance of common stock (in shares)				6.2
Ownership interest (percent)				12.80%					13.00%