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LONG-TERM INCENTIVE COMPENSATION - Restricted Fund Units Liability (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward]
Balance at beginning of year	$ 1,020.7
Balance at end of year	976.9
Restricted Fund Units
Deferred Compensation Arrangement With Individual, Share-Based Payments [Roll Forward]
Balance at beginning of year	14.7
Amortization of grant date value	11.8
Amortization of market appreciation (depreciation)	(0.5)
Balance at end of year	$ 26.0

X

- Definition

Deferred Compensation Arrangement With Individual, Amortization Of Appreciation (Depreciation)

+ References

No definition available.

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- Definition

Deferred Compensation Arrangement With Individual, Amortization Of Grant Date Value

+ References

No definition available.

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X

- Definition

Deferred Compensation Arrangement With Individual, Share-Based Payments

+ References

No definition available.

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- Definition

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 710
-SubTopic 10
-Name Accounting Standards Codification
-Section 30
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483043/710-10-30-1

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