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ACQUISITION - Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
MDT Personnel, LLC
Jun. 28, 2013
MDT Personnel, LLC
Feb. 04, 2013
MDT Personnel, LLC
state
branch
Jun. 09, 2013
Crowley Transportation Services, LLC
Business Acquisition [Line Items]        
Acquisition cost, cash paid     $ 53.4  
Number of branch locations operated by acquiree     105  
Number of states in which acquiree operates     25  
Number of acquired entity's branches consolidated     65  
Integration related costs 0.6 2.8    
Integration related costs accrual 0.2 0.2    
Total consideration paid       2.4
Contingent consideration       $ 0.6