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Subsequent Event
6 Months Ended
Jun. 30, 2011
Subsequent Event [Abstract]  
Subsequent Event
12.  
Subsequent Event
   
On August 1, 2011, the Company acquired all of the outstanding stock of The James Brooks Company, a provider of intermodal transportation and related services primarily from the ports of Los Angeles/Long Beach and Oakland for approximately $7.5 million. The acquisition was financed with borrowing under the Company’s revolving credit facility.