FINANCIAL INSTRUMENTS AND FAIR VALUE - Schedule of Carrying Values and Fair Values of Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Carrying Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,261.4	$ 2,260.6
Fair Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,205.3	2,115.8
Senior Notes \| 4.50% Senior Notes due 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate of debt instrument	4.50%
Senior Notes \| 4.50% Senior Notes due 2028 \| Carrying Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 403.8	403.4
Senior Notes \| 4.50% Senior Notes due 2028 \| Fair Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 398.4	385.8
Senior Notes \| 4.625% Senior Notes due 2029
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate of debt instrument	4.625%
Senior Notes \| 4.625% Senior Notes due 2029 \| Carrying Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 793.0	791.9
Senior Notes \| 4.625% Senior Notes due 2029 \| Fair Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 774.0	742.0
Senior Notes \| 4.75% Senior Notes due 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate of debt instrument	4.75%
Senior Notes \| 4.75% Senior Notes due 2030 \| Carrying Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 443.1	442.8
Senior Notes \| 4.75% Senior Notes due 2030 \| Fair Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 430.5	412.7
Senior Notes \| 5.00% Senior Notes due 2032
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate of debt instrument	5.00%
Senior Notes \| 5.00% Senior Notes due 2032 \| Carrying Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 593.7	593.0
Senior Notes \| 5.00% Senior Notes due 2032 \| Fair Value:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	574.5	546.0
Mortgage notes payable bearing interest at fixed rates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	27.9	29.3
Long-term Debt	$ 27.8	$ 29.6

Contractual interest rate for funds borrowed, under the debt agreement.

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