Business Combination, Consideration Transferred, Shares Acquired, Fair Value

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- Definition

Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Finite-Lived Intangibles, Discount Rate

+ References

No definition available.

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- Definition

Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Finite-Lived Intangibles, Royalty Rate

+ References

No definition available.

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

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-SubTopic 30
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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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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

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

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- Definition

The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Acquisitions - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Jan. 05, 2018	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
NYX
Business Acquisition [Line Items]
Cash paid in acquisition	$ 665.8
Fair value of shares acquired	91.9
Non-controlling equity interest held before acquisition	$ 90.4
Acquisition-related costs recorded			$ 7.7	$ 15.1
Allocated purchase price adjustment		$ 8.1
Royalty rate			0.50%
Spicerack
Business Acquisition [Line Items]
Goodwill deductible for income tax purposes			$ 12.8
Minimum
Business Acquisition [Line Items]
Discount rate			9.00%
Royalty rate			1.00%
Minimum \| NYX
Business Acquisition [Line Items]
Discount rate			10.00%
Maximum
Business Acquisition [Line Items]
Discount rate			20.00%
Royalty rate			16.00%
Contingent acquisition consideration liabilities			$ 49.2
Maximum \| NYX
Business Acquisition [Line Items]
Discount rate			14.00%
Business Combination \| Revenue
Business Acquisition [Line Items]
Revenue and earnings associated with acquisitions (less than)			5.00%
Business Combination \| Earnings
Business Acquisition [Line Items]
Revenue and earnings associated with acquisitions (less than)			5.00%