XML 44 R41.htm IDEA: XBRL DOCUMENT
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Subsequent Events (Details) (Subsequent event, Derailment of freight train) | Jul. 06, 2013 bbl item
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Subsequent Events |
Number of tanker-cars carried by the freight train | 72
Volume of crude oil (in barrels) | 50,000
DPM |
Subsequent Events |
Ownership interest in joint venture (as a percent) | 50.00%
DPTS |
Subsequent Events |
Ownership interest in joint venture (as a percent) | 50.00%

X
- Definition Represents the volume of crude oil. + References No definition available. + Details
Name: | int_CrudeOilVolume
Namespace Prefix: | int_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of tanker cars. + References No definition available. + Details
Name: | int_NumberOfTankerCars
Namespace Prefix: | int_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage of ownership interest in joint venture. + References No definition available. + Details
Name: | int_OwnershipInterestInJointVenture
Namespace Prefix: | int_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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