<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:a0cf7a60-0f0e-430b-8bc8-b0151e285dba,g:1a1c6191-d500-4254-88fe-bead9b477f1e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.wfscorp.com/role/CoverPageDocument" xlink:type="simple" xlink:href="int-20210521.xsd#CoverPageDocument"/>
  <link:presentationLink xlink:role="http://www.wfscorp.com/role/CoverPageDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_f68fc350-a502-45ec-b685-7e4d24ae7d88" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityCentralIndexKey_f68fc350-a502-45ec-b685-7e4d24ae7d88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_caa36d31-4742-42c5-8e4b-3b148849d1b1" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityRegistrantName_caa36d31-4742-42c5-8e4b-3b148849d1b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_7038510b-e225-4aa2-bf46-c3e546ea6821" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_Security12bTitle_7038510b-e225-4aa2-bf46-c3e546ea6821" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_4b2d1ed2-d65f-4e06-b818-feabfb6eb704" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityAddressAddressLine1_4b2d1ed2-d65f-4e06-b818-feabfb6eb704" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_9a7a3cc6-db37-4eaf-8780-330274a16e80" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityIncorporationStateCountryCode_9a7a3cc6-db37-4eaf-8780-330274a16e80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_a8833a2e-dfb7-42f0-b039-411b1c0d5294" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_DocumentType_a8833a2e-dfb7-42f0-b039-411b1c0d5294" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_eb00ba9e-c53b-4d5f-9280-3ff4de92a86a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_DocumentPeriodEndDate_eb00ba9e-c53b-4d5f-9280-3ff4de92a86a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_03a6d964-6a74-4438-828f-95ad545db7a7" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityFileNumber_03a6d964-6a74-4438-828f-95ad545db7a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_21210a4c-bfab-4e0f-af98-8c3e5b2c804a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityTaxIdentificationNumber_21210a4c-bfab-4e0f-af98-8c3e5b2c804a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_c5c2d64c-f788-4eaa-aabd-898973dc0f4f" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityAddressCityOrTown_c5c2d64c-f788-4eaa-aabd-898973dc0f4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_32eda6bc-2f4c-4ebb-b796-0b50ce52c2f9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityAddressStateOrProvince_32eda6bc-2f4c-4ebb-b796-0b50ce52c2f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_e25ee708-f0c8-4ac5-98bf-13574453d204" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityAddressPostalZipCode_e25ee708-f0c8-4ac5-98bf-13574453d204" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_4a8f3573-2e41-40a0-b461-18fdc064b5b1" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_TradingSymbol_4a8f3573-2e41-40a0-b461-18fdc064b5b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_0fe554a1-d8c2-4359-bd88-55324a2b213a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_SecurityExchangeName_0fe554a1-d8c2-4359-bd88-55324a2b213a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_7852ff00-6e96-46a4-9e52-91b1f30f036c" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_CityAreaCode_7852ff00-6e96-46a4-9e52-91b1f30f036c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_10785b93-3ba8-4fc6-bc89-f1eda1a1f14e" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_LocalPhoneNumber_10785b93-3ba8-4fc6-bc89-f1eda1a1f14e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_359dc49b-4735-42bc-8cd7-aed28d2140d9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_WrittenCommunications_359dc49b-4735-42bc-8cd7-aed28d2140d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_631bd591-090c-4331-8bdb-539594e4625a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_SolicitingMaterial_631bd591-090c-4331-8bdb-539594e4625a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_60b9c152-ac30-4fc3-8e72-7615fce0c22c" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_PreCommencementTenderOffer_60b9c152-ac30-4fc3-8e72-7615fce0c22c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_751f1a60-80f7-45ad-a948-b891364b5360" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_751f1a60-80f7-45ad-a948-b891364b5360" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_4ad02c87-6d48-44f4-b33f-49812b3389cc" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_AmendmentFlag_4ad02c87-6d48-44f4-b33f-49812b3389cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_e050f5cb-4245-4681-8a92-50ca1027b5b9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_1e9fd19a-2a0a-447b-b95d-8a819ed61b44" xlink:to="loc_dei_EntityEmergingGrowthCompany_e050f5cb-4245-4681-8a92-50ca1027b5b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
