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Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jul. 31, 2022	Oct. 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		$ 57,100	$ 23,300
Unrealized losses for securities in unrealized loss position for 12 months or longer		39,000	0
Fair Value
Fair Value, Separate Account Investment [Line Items]
Equity securities		132,405	$ 168,784
Strategic Investment Of Technology Company
Fair Value, Separate Account Investment [Line Items]
Purchase of strategic investments	$ 40,000
Unrealized loss on securities		(17,800)
Strategic Investment Of Technology Company \| Fair Value
Fair Value, Separate Account Investment [Line Items]
Equity securities		$ 22,200
Ownership percentage (less than) (as a percent)		1.00%