Debt Securities, Held to Maturity, Term Of Securities

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity), classified as noncurrent.

+ References

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- Definition

Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

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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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (c)
-Publisher FASB
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-Name Accounting Standards Codification
-Section S99
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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Fair Value - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
Fair Value - Narrative (Details) - USD ($) $ in Millions	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023	Feb. 29, 2024
Fair Value
Investment income, interest	$ 0.1	$ 0.1	$ 0.2	$ 0.1
U.S. Treasury Bills
Fair Value
Gross unrealized gains (losses) on US Treasury bills			$ 0.0		$ 0.0
U.S. Treasury Bills \| Minimum
Fair Value
Term of US treasury bills held to maturity (less than one to five years)	1 year		1 year
U.S. Treasury Bills \| Maximum
Fair Value
Term of US treasury bills held to maturity (less than one to five years)	5 years		5 years
U.S. Treasury Bills \| Prepaid Expenses and Other Current Assets
Fair Value
US treasury bills, carrying value, current	$ 2.5		$ 2.5		2.5
U.S. Treasury Bills \| Other Assets
Fair Value
US treasury bills, carrying value, current	2.5		2.5		2.5
US treasury bills, carrying value, non-current	$ 8.2		$ 8.2		$ 6.6