Key Customer	12 Months Ended
Dec. 31, 2015
Risks and Uncertainties [Abstract]
Key Customer	Key Customer Services provided to the Company’s largest customer, Wal-Mart, generated 12%, 11% and 11% of operating revenue in 2015, 2014 and 2013, respectively. Operating revenue generated by Wal-Mart is reported in the Truckload, Dedicated, Swift Refrigerated and Intermodal operating segments. No other customer accounted for 10% or more of operating revenue in the reporting period.

Key Customer

12 Months Ended

Dec. 31, 2015

Services provided to the Company’s largest customer, Wal-Mart, generated 12%, 11% and 11% of operating revenue in 2015, 2014 and 2013, respectively. Operating revenue generated by Wal-Mart is reported in the Truckload, Dedicated, Swift Refrigerated and Intermodal operating segments. No other customer accounted for 10% or more of operating revenue in the reporting period.