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

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.

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