Revenue Recognition (Net Contract Assets (Liabilities)) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
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| Revenue Recognition and Deferred Revenue [Abstract] | |||||
| Contract assets | $ 1.7 | $ 1.7 | $ 1.7 | ||
| Contract liabilities - current | (11.9) | (11.9) | (10.5) | ||
| Contract liabilities - noncurrent | (11.1) | (11.1) | (10.3) | ||
| Total | (21.3) | (21.3) | $ (19.1) | ||
| Contract with Customer, Liability, Revenue Recognized | $ 0.0 | $ 5.4 | $ 3.0 | $ 8.5 | |
| X | ||||||||||
- Definition Contract with Customer, Asset (Liability), Net No definition available.
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| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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