XML 79 R49.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Commitments and Contingencies (Details 4) (Watson Plan) In Millions, unless otherwise specified | Dec. 31, 2014 USD ($) | Dec. 31, 2014 GBP (£) | Mar. 07, 2014 USD ($) | Mar. 07, 2014 GBP (£) | Dec. 31, 2014 Accrued expenses and other current liabilities USD ($) | Dec. 31, 2014 Accrued expenses and other current liabilities GBP (£)
--- | --- | --- | --- | --- | --- | ---
Defined benefit pension plan |  |  |  |  |  |
Assumed pension exit obligation |  |  | $ (16.3)int_BusinessCombinationDefinedBenefitPlanAssumedPensionExitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember | £ 9.8 int_BusinessCombinationDefinedBenefitPlanAssumedPensionExitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember | $ (1.5)int_BusinessCombinationDefinedBenefitPlanAssumedPensionExitObligation / us-gaap_BalanceSheetLocationAxis = int_AccruedExpensesAndOtherCurrentLiabilitiesMember / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember | £ 1.0 int_BusinessCombinationDefinedBenefitPlanAssumedPensionExitObligation / us-gaap_BalanceSheetLocationAxis = int_AccruedExpensesAndOtherCurrentLiabilitiesMember / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember
Estimated benefit obligation | $ (49.8)us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember | £ 32.0 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = int_WatsonDefinedBenefitPensionPlanMember |  |  |  |

X
- Definition Represents the estimated assumed pension exit obligation in connection with an acquisition. + References No definition available. + Details
Name: | int_BusinessCombinationDefinedBenefitPlanAssumedPensionExitObligation
Namespace Prefix: | int_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 + Details
Name: | us-gaap_DefinedBenefitPlanBenefitObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration