Represents the annual forfeiture rate estimated by the entity under its share based compensation plan.

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
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-Subparagraph (SAB Topic 14.F)
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Details

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STOCKHOLDERS' EQUITY - Stock Compensation Plans (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Apr. 12, 2019
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense		$ 25.1	$ 44.4	$ 41.3
Forfeiture rate (as a percent)		5.00%	5.00%	5.00%
Unrecognized expenses		$ 29.4
Approximate weighted average period for recognizing expenses		1 year 3 months 18 days
Income tax benefits related to stock-based compensation expense		$ 3.6	$ 7.3	$ 5.4
Cost of operations.
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense		16.5	23.3	18.8
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense		8.6	21.1	22.5
Discontinued Operations, Held-for-sale \| Epsilon
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Stock-based compensation expense	$ 19.4	$ 29.7	$ 36.4	$ 33.8
Consideration					$ 4,400.0