Intangible assets and goodwill - Narrative (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 31, 2023 |
Oct. 31, 2022 |
Oct. 31, 2023 |
Oct. 31, 2022 |
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| Goodwill and Intangible Assets Disclosure [Abstract] | ||||
| Amortization expense | $ 36,000,000 | $ 37,600,000 | $ 108,800,000 | $ 111,400,000 |
| Change in goodwill | $ 0 | |||
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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