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Related Parties - Additional information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Airplane Services Transactions
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| Related Party Transaction [Line Items] | |||
| Related party transactions | $ 1.0 | $ 1.1 | $ 0.9 |
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Directional Services
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| Related Party Transaction [Line Items] | |||
| Related party transactions | 0.7 | ||
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Logistics Services | Minimum
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| Related Party Transaction [Line Items] | |||
| Commissions received by related party | $ 0.1 | $ 0.1 | |
| X | ||||||||||
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- Definition
Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Due To Related Party Fees And Commissions No definition available.
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