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v3.24.2

Marketable Securities - Summary of Available-for-Sale Debt Securities by Asset Type (Detail) - USD ($) $ in Thousands | May 31, 2024 | May 31, 2023
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Debt Securities, Available-for-sale [Line Items] |  |
Available-for-Sale Debt Securities, Amortized Cost | $ 28,484 | $ 28,988
Available-for-Sale Debt Securities, Gross Unrealized Gains | 9 | 29
Available-for-Sale Debt Securities, Gross Unrealized Losses | (1,796) | (1,855)
Available-for-Sale Debt Securities, Fair Value (Net Carrying Amount) | 26,697 | 27,162
U.S. Treasury and other government |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-Sale Debt Securities, Amortized Cost | 28,338 | 28,841
Available-for-Sale Debt Securities, Gross Unrealized Gains | 5 | 23
Available-for-Sale Debt Securities, Gross Unrealized Losses | (1,784) | (1,843)
Available-for-Sale Debt Securities, Fair Value (Net Carrying Amount) | 26,559 | 27,021
Corporate bonds |  |
Debt Securities, Available-for-sale [Line Items] |  |
Available-for-Sale Debt Securities, Amortized Cost | 146 | 147
Available-for-Sale Debt Securities, Gross Unrealized Gains | 4 | 6
Available-for-Sale Debt Securities, Gross Unrealized Losses | (12) | (12)
Available-for-Sale Debt Securities, Fair Value (Net Carrying Amount) | $ 138 | $ 141

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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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 -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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