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Investments (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Jan. 31, 2022
Disclosure Text Block Supplement [Abstract]
Retained Earnings, Undistributed Earnings from Equity Method Investees	$ 13,700		$ 10,500
Proceeds from Equity Method Investment, Distribution	3,007	$ 1,504
Short-Term Investments	$ 153,819		$ 25,877
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Year One	3.10%		0.10%

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- Definition

Weighted average yield of investment in debt security measured at amortized cost (held-to-maturity) maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50 percent or less owned persons accounted for by the equity method (equity method investees).

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