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Investments (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Investment [Line Items] |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | $ 14,400,000 | $ 15,500,000 |
Related Party Transaction, Purchases from Related Party | 79,600,000 | 80,200,000 | $ 137,700,000
Commercial Paper | 115,000,000 | 0 |
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value | 800,000 | 800,000 |
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities | 82,100,000 | 3,800,000 | 56,400,000
Equity Method Investment, Other-than-Temporary Impairment | 0 | 19,200,000 | 0
Equity Method Investment, Other-than-Temporary Impairment | $ 0 | $ 19,200,000 | $ 0
TMC [Member] |  |  |
Investment [Line Items] |  |  |
Percentage of Ownership in TMC | 50.00% |  |
TechNexus |  |  |
Investment [Line Items] |  |  |
Percentage of Ownership in TMC | 50.00% |  |
Equity Method Investment, Other-than-Temporary Impairment | $ 19,200,000 |  |
Equity Method Investment, Other-than-Temporary Impairment | $ 19,200,000 |  |

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