Note 4 - Investments and Fair Value Measurements (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Jun. 30, 2024 |
Sep. 30, 2024 |
Dec. 31, 2023 |
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| Equity Securities without Readily Determinable Fair Value, Amount | $ 196,400 | $ 196,400 | $ 200,900 | |
| Equity Method Investments | 26,400 | 26,400 | 30,500 | |
| Provision for Credit Loss on Investments | 0 | 0 | ||
| Stock of Non-Public Company [Member] | ||||
| Proceeds from Sale of Equity Method Investments | $ 112,100 | |||
| Gain (Loss) on Sale of Investments | $ 98,300 | |||
| Registered Investment Companies [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member] | ||||
| Investments, Fair Value Disclosure | $ 1,200 | $ 1,200 | $ 1,200 | |
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of provision for credit loss on investments. No definition available.
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