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Investment Securities (Equity Securities without Readily Determinable Fair Value) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
Equity Securities without Readily Determinable Fair Value [Line Items] |  |  |  |  |  |
Equity Securities without Readily Determinable Fair Value, Amount | $ 65,780 | $ 65,780 | $ 9,413 | $ 9,083 | $ 6,988 | $ 6,978
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount | 178,227 | 178,227 |  |  |  |
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount | 0 | 0 |  |  |  |
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount | 0 | 0 |  |  |  |
Sales of Equity Securities Without Readily Determinable Fair Value | $ (119,435) | $ (119,425) |  |  |  |

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- Definition Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-3 + Details
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- Definition Amount of impairment loss on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-3 + Details
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