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TREASURY STOCK PURCHASE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 01, 2021	Mar. 13, 2020	Nov. 06, 2019	Feb. 26, 2019
Treasury Stock Purchase
Number of shares repurchased of common stock from employees in lieu of cash or withholding taxes due	20
Cash payment for repurchase of common stock from employees in lieu of cash or withholding taxes due	$ 1.0
February 2019 Repurchase Plan
Treasury Stock Purchase
Share repurchase program, authorized amount					$ 500.0
Common stock repurchased (in shares)	600
Average purchase price (in dollars per share)	$ 58.16
Repurchase price of stock	$ 36.6
November 2019 Repurchase Plan
Treasury Stock Purchase
Share repurchase program, authorized amount				$ 500.0
Common stock repurchased (in shares)	9,100
Average purchase price (in dollars per share)	$ 54.86
Repurchase price of stock	$ 499.9
March 2020 Repurchase Plan
Treasury Stock Purchase
Share repurchase program, authorized amount		$ 441.5	$ 500.0
Common stock repurchased (in shares)	1,000
Average purchase price (in dollars per share)	$ 55.85
Repurchase price of stock	$ 58.5

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- Definition

Represents the number of shares repurchased of common stock to satisfy employee tax withholding obligations for stock issued as part of an employee benefit plan.

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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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Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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Amount of stock repurchase plan authorized.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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