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LEASES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Company's commitments resulting from leases |  |
Lease expense | $ 177.3 |
Contractual lease commitments | $ 35.2 | $ 15.6
Lease liabilities | Liquidity risk |  |
Company's commitments resulting from leases |  |
Weighted-average nominal interest rate for lease liabilities | 4.90% | 5.60%

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- Definition Amount of future minimum lease payments of noncancellable lease. + References No definition available. + Details
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Namespace Prefix: | as_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Lease Expense, Recognized, Excluded From Measurement Of Lease Liabilities + References No definition available. + Details
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Namespace Prefix: | as_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The percentage of nominal interest rates of non-derivative financial liabilities. + References No definition available. + Details
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Namespace Prefix: | as_
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Balance Type: | na
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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