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v3.25.2

Debt (Details) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt Instrument [Line Items] |  |
Fair value | $ 1,422,700,000 | $ 1,400,700,000
Debt and Lease Obligation | 1,589,300,000 | 1,588,700,000
Senior Notes Due 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Debt | $ 550,000,000 |
Debt Instrument, Interest Rate, Stated Percentage | 3.875% |
Debt Instrument, Face Amount | $ 550,000,000 |
Debt and Lease Obligation | 549,300,000 | 549,000,000.0
Senior Notes Due 2026 [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Debt Instrument [Line Items] |  |
Fair value | 546,300,000 | 541,400,000
Senior Notes Due 2051 |  |
Debt Instrument [Line Items] |  |
Debt | $ 650,000,000 |
Debt Instrument, Interest Rate, Stated Percentage | 3.85% |
Debt Instrument, Face Amount | $ 650,000,000 |
Debt and Lease Obligation | 643,500,000 | 643,400,000
Senior Notes Due 2051 | Fair Value, Inputs, Level 2 [Member] |  |
Debt Instrument [Line Items] |  |
Fair value | 463,900,000 | 458,000,000.0
Senior Notes Due 2034 |  |
Debt Instrument [Line Items] |  |
Debt | $ 400,000,000 |
Debt Instrument, Interest Rate, Stated Percentage | 5.75% |
Debt Instrument, Face Amount | $ 400,000,000 |
Debt and Lease Obligation | 396,400,000 | 396,200,000
Senior Notes Due 2034 | Fair Value, Inputs, Level 2 [Member] |  |
Debt Instrument [Line Items] |  |
Fair value | $ 412,400,000 | $ 401,300,000

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