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Fair Value and Equity Investments - Changes in Fair Value of Level 3 Life Insurance Contracts (Details) - Life Insurance Contracts [Member] - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2026 | Jun. 30, 2025
Fair Value and Equity Investments [Abstract] |  |
Beginning balance | $ 48,410 | $ 44,091
Actual return on plan assets | 3,739 | 1,935
Ending balance | $ 52,149 | $ 46,026

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