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Business Segment Information - Net Revenues Calculation (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Net Revenues Calculation [Line Items]    
Total revenues $ 1,677,526us-gaap_Revenues $ 1,491,645us-gaap_Revenues
Airfreight services 513,001expd_CostOfAirfreightConsolidation 482,882expd_CostOfAirfreightConsolidation
Ocean freight and ocean services 445,456expd_CostOfOceanFreightConsolidation 367,375expd_CostOfOceanFreightConsolidation
Customs brokerage and other services 189,583expd_CostOfCustomsBrokerageAndOtherServices 176,802expd_CostOfCustomsBrokerageAndOtherServices
Net revenues $ 529,486expd_NetRevenues [1] $ 464,586expd_NetRevenues [1]
[1] Net revenues are a non-GAAP measure calculated as revenues less directly related operations expenses attributable to the Company's principal services. The Company's management believes that net revenues are a better measure than total revenues when evaluating the Company's operating segment performance since total revenues earned as a freight consolidator include the carriers' charges for carrying the shipment, whereas revenues earned in other capacities include primarily the commissions and fees earned by the Company. Net revenue is one of the Company's primary operational and financial measures and demonstrates the Company's ability to concentrate and leverage purchasing power through effective consolidation of shipments from customers utilizing a variety of transportation carriers and optimal routings.