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Other Income (Expense), Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Other Income and Expenses [Abstract]
Interest income	$ 10,350	$ 12,236
Interest expense	(11,601)	(18,302)
Other	8,392	2,218
Other income (expense), net	$ 7,141	$ (3,848)

X

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
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X

- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

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- Definition

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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No definition available.

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X

- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

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