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Investments (Details) - USD ($)	9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Jan. 31, 2024
Disclosure Text Block Supplement [Abstract]
Retained Earnings, Undistributed Earnings from Equity Method Investees	$ 19,000,000		$ 14,900,000
Proceeds from Equity Method Investment, Distribution	3,000,000	$ 5,500,000
Short-Term Investments	$ 66,826,000		$ 155,260,000
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Year One	5.10%		5.50%
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss	$ 18,000		$ 94,000

X

- 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

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-Number 229
-Section 1403
-Paragraph a
-Subparagraph (1)
-Publisher SEC

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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 accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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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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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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