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v3.23.1

Basis of Presentation, New Accounting Standards, and Significant Accounting Policies (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
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Accounting Policies [Abstract] |  |
Supplier finance program, obligation | $ 194.1 | $ 246.8

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- Definition Supplier Finance Program, Obligation, Current + References No definition available. + Details
Name: | int_SupplierFinanceProgramObligationCurrent
Namespace Prefix: | int_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration