XML 75 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill - Schedule of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Goodwill [Line Items]    
Goodwill at beginning of period $ 55,947 $ 19,084
Acquisitions and other adjustments 13,980  
Goodwill at end of period 69,927 19,084
Expedited Transportation [Member]
    
Goodwill [Line Items]    
Goodwill at beginning of period 7,737  
Acquisitions and other adjustments 3,823  
Goodwill at end of period 11,560  
Freight Forwarding [Member]
    
Goodwill [Line Items]    
Goodwill at beginning of period 9,222  
Acquisitions and other adjustments     
Goodwill at end of period 9,222  
Freight Brokerage [Member]
    
Goodwill [Line Items]    
Goodwill at beginning of period 38,988  
Acquisitions and other adjustments 10,157  
Goodwill at end of period $ 49,145