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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

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