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Short-Term and Long-Term Investments - Amortized Cost and Estimated Fair Value of Available-for-Sale Securities by Contractual Maturities (Detail) $ in Thousands | Sep. 30, 2021 USD ($)
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Schedule of Available-for-sale Securities [Line Items] |
Debt Securities, Available-for-sale, Amortized Cost | $ 50,216
Available For Sale Debt Securities Estimated Fair Value | 50,217
Failed Auction Security [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Due in twenty to forty years, Cost | 3,000
Due in twenty to forty years, Estimated Fair Value | 2,598
US Treasury Obligations [Member] |
Schedule of Available-for-sale Securities [Line Items] |
Maturities greater than three months but less than one year, Cost | 50,216
Maturities greater than three months but less than one year, Estimated Fair Value | $ 50,217

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + 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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- Details
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