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Derivative Financial Instruments and Risk Management - Schedule of Impact of the Derivative Instruments in the Condensed Consolidated Financial Statements (Detail) - Cash Flow Hedge [Member] - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2021 | Jan. 31, 2020
Cross Currency Interest Rate Contract [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Amount of Gain (Loss) Recognized in OCI on Derivative | $ (301) | $ 159
Location of Gain Reclassified from Accumulated OCI into Income (Expense) | Other Income |
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income | $ (248) | 338
Cross Currency Interest Rate Swap [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount |  | 4,489
Fair Value Derivatives, Liability |  | 250
Interest Rate Swap [Member] |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Notional Amount |  | 8,250
Fair Value Derivatives, Liability |  | $ 96

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