Goodwill and Intangible Assets - (Details) - USD ($) |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jan. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Sep. 30, 2025 |
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| Goodwill [Line Items] | ||||
| Impairment of intangible assets with indefinite lives | $ 0 | |||
| Goodwill | $ 539,061,000 | $ 540,674,000 | ||
| Impairment losses in connection with the goodwill | 0 | $ 0 | ||
| Goodwill, decreased from effects of foreign currency exchange rates | 1,600,000 | |||
| Sally | ||||
| Goodwill [Line Items] | ||||
| Goodwill | 89,800,000 | |||
| Impairment losses in connection with the intangible assets | $ 1,800,000 | |||
| BSG | ||||
| Goodwill [Line Items] | ||||
| Goodwill | $ 449,200,000 | |||
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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