RELATED-PARTY TRANSACTIONS - Schedule of Related Party Leases Balance Sheets (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Related Party Transaction [Line Items]
Right-of-use assets	$ 145.7	$ 150.4
Long-term portion of operating lease liabilities	123.9	128.0
Related Party
Related Party Transaction [Line Items]
Right-of-use assets	99.4	105.2
Current portion of operating lease liabilities	14.5	14.7
Long-term portion of operating lease liabilities	$ 97.5	$ 101.4

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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+ Details