XML 36 R25.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Income Taxes (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Income Taxes |
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 |
| March 31, |
| 2016 |  | 2015 |
Income tax provision | $ | 4.8 |  | $ | 9.9 |
Effective income tax rate |  | 8.3 | % |  | 15.3 | %

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