Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2022	Jan. 31, 2022
Fair Value, Separate Account Investment [Line Items]
Unrealized losses for securities in unrealized loss position for less than 12 months	$ 56,400	$ 23,300
Unrealized losses for securities in unrealized loss position for 12 months or longer	8,000	0
Fair Value
Fair Value, Separate Account Investment [Line Items]
Equity securities	139,908	$ 168,784
Strategic Investment Of Technology Company
Fair Value, Separate Account Investment [Line Items]
Purchase of strategic investments	40,000
Unrealized loss on securities	12,200
Strategic Investment Of Technology Company \| Fair Value
Fair Value, Separate Account Investment [Line Items]
Equity securities	$ 27,800
Ownership percentage (less than) (as a percent)	1.00%

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.

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