Debt (Deferred finance charges) (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| $500 Million And $160 Million Revolving Credit Facility And ECA Credit Facility Tranches [Member] | ||
| Debt | ||
| Deferred finance costs, gross | $ 10.5 | $ 12.6 |
| $160 Million Revolving Credit Facility [Member] | ||
| Debt | ||
| Credit facility, maximum borrowing capacity | 160.0 | 160.0 |
| $500 Million Revolving Credit Facility [Member] | ||
| Debt | ||
| Credit facility, maximum borrowing capacity | 500.0 | 500.0 |
| Outstanding Debt Facilities [Member] | ||
| Debt | ||
| Deferred finance costs, gross | $ 13.6 | $ 11.1 |
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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