ACQUISITIONS - Aggregate Purchase Price Paid for Acquisitions and Other Adjustments to Consideration (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Cash	$ 0.0	$ 0.2	$ 44.7
Series of individual business acquisitions
Business Acquisition [Line Items]
Cash	0.0	0.2	44.8
Promissory notes	0.0	0.3	30.0
Deferred consideration	0.0	0.0	0.6
Total purchase price	$ 0.0	$ 0.5	$ 75.4

Business acquisition, cost of acquired entity, deferred consideration.

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

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

+ References

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

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