Investments - Additional Information (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2024 |
Jan. 31, 2023 |
Jan. 31, 2022 |
|
| Fair Value, Separate Account Investment [Line Items] | |||
| Unrealized loss position, less than 12 months | $ 6,000,000 | $ 24,800,000 | |
| Unrealized loss position, more than 12 months | 4,800,000 | 42,000,000 | |
| Available-for-sale, realized gain (loss) | 0 | 0 | $ 0 |
| Payments for strategic investment | 70,527,000 | 69,050,000 | 305,149,000 |
| Unrealized gain (loss) on investments | 85,600,000 | ||
| Proceeds from strategic investments | 170,067,000 | 300,000 | $ 0 |
| Investment in Equity Securities of Private Companies | |||
| Fair Value, Separate Account Investment [Line Items] | |||
| Payments for strategic investment | 70,500,000 | ||
| Investment in Equity Securities of Public Companies | |||
| Fair Value, Separate Account Investment [Line Items] | |||
| Proceeds from strategic investments | 169,900,000 | ||
| Fair Value | |||
| Fair Value, Separate Account Investment [Line Items] | |||
| Equity securities | $ 23,160,000 | $ 171,975,000 | |
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on 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 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of accumulated unrealized loss on 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 less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow to acquire investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash inflow from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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