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Investments - Cumulative Impairment Charges of Equity Securities without Readily Determinable Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Cost-method Investments |  |
Debt Securities, Available-for-sale [Line Items] |  |
Cumulative downward adjustments for observable price changes and impairment | $ 56,217 | $ 56,217

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- Definition Amount of cumulative impairment loss on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
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- Definition Line items represent financial 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. + References No definition available. + Details
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