Percentage of potential target shares to be earned under Performance Share agreement

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

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

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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.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Discount rate from fair value on purchase date that participants pay for shares.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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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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Number of shares authorized for issuance under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended		12 Months Ended
	Mar. 09, 2023	Dec. 31, 2022	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount from market price (in percent)			15.00%
Stock-based compensation expense			$ 64.9	$ 65.5
2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issuable under stock incentive plan (in shares)			3,300,000
Stock Options and Time-Based Restricted Stock Units \| 2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years	3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Unrecognized compensation expense			$ 22.7
Expected weighted average recognition period			2 years
Units granted (in shares)			87,550
Stock-based compensation expense			$ 9.1
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of potential target shares			0.00%
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of potential target shares			200.00%
Performance Shares \| 2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Performance Shares \| 2024 PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			87,550
Weighted average grant date fair value (in dollars per share)			$ 216.11
Performance Shares \| 2023 PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)					118,684
Performance Shares \| 2022 PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)						98,542
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense			$ 0.0
Stock Options \| 2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period			10 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			688,313
Restricted stock units \| 2007 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense			$ 258.1
Restricted stock units \| 2007 Plan \| Weighted Average
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected weighted average recognition period			2 years