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Cash, Cash Equivalents and Investments - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Nov. 30, 2025 | Nov. 30, 2024 | Nov. 30, 2025 | Nov. 30, 2024 | Feb. 28, 2025
Cash, Cash Equivalents and Investments [Line Items] |  |  |  |  |
Investments that are communicated to the third party for consideration of reasonableness, threshold limit for fair values |  |  | 0.50% |  |
Equity Securities without Readily Determinable Fair Value, Amount | $ 59.3 |  | $ 59.3 |  | $ 58.9
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount | 1.8 |  | 1.8 | $ 1.2 |
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount |  | $ 2.4 |  |  |
Debt Securities, Available-for-sale, Realized Gain (Loss) | 0.0 | $ 0.0 | 0.0 | $ 0.0 |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 0.0 |  | 0.0 |  | 0.0
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount | 1.3 |  | 1.3 |  |
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount | $ 4.3 |  | $ 4.3 |  | $ 3.0
Minimum |  |  |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |  |  |
Letters of credit terms |  |  | 1 month |  |
Maximum |  |  |  |  |
Cash, Cash Equivalents and Investments [Line Items] |  |  |  |  |
Letters of credit terms |  |  | 6 years |  |

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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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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479081/326-30-55-8 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-7 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-5 + Details
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