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Deferred Costs (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2023 | Oct. 31, 2022 | Jan. 31, 2023
Deferred Costs [Abstract] |  |  |  |  |
Deferred costs | $ 19,733,000 |  | $ 19,733,000 |  | $ 31,825,000
Amortization of deferred costs | 4,000,000 | $ 5,000,000 | 13,000,000 | $ 17,000,000 |
Impairment losses recorded in relation to the costs capitalized | $ 0 | $ 0 | $ 0 | $ 0 |

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- Definition The amount of amortization of deferred charges applied against earnings during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
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- Definition Amount of deferred cost, excluding capitalized cost related to contract with customer; classified as noncurrent. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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