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Fair Value Measurements and Derivative Instruments (Carrying Value and Fair Value of Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value | $ 23,456 | $ 24,273
Fair value | 23,059 | 23,921
Government securities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value | 19,089 | 19,865
Fair value | 18,966 | 19,787
Other |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value | 4,367 | 4,408
Fair value | $ 4,093 | $ 4,134

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