Investments (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Investment [Line Items] | |||
| Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | $ 15,500,000 | $ 43,100,000 | |
| Related Party Transaction, Purchases from Related Party | 80,200,000 | 137,700,000 | $ 135,100,000 |
| Commercial Paper | 0 | 3,700,000 | |
| Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value | 800,000 | 800,000 | |
| Available-for-sale Securities | 800,000 | 4,500,000 | |
| Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities | 3,800,000 | 56,400,000 | 55,900,000 |
| Equity Method Investment, Other than Temporary Impairment | $ 19,200,000 | $ 0 | $ 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 | ||
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- Definition Line items represent reporting 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. No definition available.
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of investment in equity method investee and investment in and advance to affiliate. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash inflow associated with the maturity, prepayments and calls (requests for early payments) of debt securities designated as held-to-maturity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. No definition available.
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