INVESTMENTS IN VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Jul. 31, 2024	Aug. 31, 2022	Jun. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2019	Feb. 28, 2025	Apr. 30, 2021
Variable Interest Entity [Line Items]
Assets				$ 13,055.3	$ 9,363.2
Total liabilities				2,992.4	2,643.8
Carrying value of non-marketable equity securities				119.1	87.6
Payment for acquisition options				46.2	30.0	$ 109.6
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Assets				252.3	272.1
Total liabilities				24.3	31.5
Variable Interest Entity, Not Primary Beneficiary | Medical Device Company
Variable Interest Entity [Line Items]
Option to acquire investment amount		$ 47.1		35.0
Payment for acquisition options		$ 47.1					$ 35.0
Loans receivables, maximum lending amount			$ 47.5
Financing receivable				47.5
Variable Interest Entity, Not Primary Beneficiary | Medical Device Company, 2021 Investment
Variable Interest Entity [Line Items]
Option to acquire investment amount				30.0
Additional contingent amount				10.0
Carrying value of non-marketable equity securities				20.0	5.0
Maximum secured promissory note				40.0
Variable Interest Entity, Not Primary Beneficiary | JenaValve Technology, Inc
Variable Interest Entity [Line Items]
Maximum secured promissory note	$ 75.0
Period for merger to close	90 days
Investee drew additional amount				15.0
Variable Interest Entity, Not Primary Beneficiary | JenaValve Technology, Inc | Subsequent Event
Variable Interest Entity [Line Items]
Investee drew additional amount								$ 10.0
Variable Interest Entity, Not Primary Beneficiary | Medical Device Company, April 2021 Investment
Variable Interest Entity [Line Items]
Carrying value of non-marketable equity securities				42.8	39.3
Maximum secured promissory note									$ 45.0
Investee drew additional amount				45.0	30.0
Investment option to acquire				20.9	$ 13.1
Maximum additional required investment				3.0
Maximum additional option to acquire investment				$ 6.6