XML 56 R29.htm IDEA: XBRL DOCUMENT
v3.19.3

Income Taxes (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2019
Income Tax Disclosure [Abstract] |
Schedule of income tax provision and the respective effective income tax rates | Our income tax provision for the periods presented and the respective effective income tax rates for such periods are as follows (in millions, except for income tax rates):
|  | For the Three Months Ended | For the Nine Months Ended
|  | September 30, | September 30,
|  | 2019 |  | 2018 | 2019 |  | 2018
Income tax provision |  | $ | 21.5 |  |  | $ | 23.0 |  | $ | 55.5 |  |  | $ | 42.7 |
Effective income tax rate |  | 30.3 | % |  | 37.3 | % | 30.9 | % |  | 30.1 | %

X
- Definition Tabular disclosure of the components of income tax expense and effective income tax rate attributable to continuing operations. + References No definition available. + Details
Name: | int_ScheduleOfIncomeTaxExpenseBenefitAndEffectiveIncomeTaxRateTableTextBlock
Namespace Prefix: | int_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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