Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 2,300	$ 0
Related party rental payments	12,543
Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	1,830
Terminal Facilities
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	1,100
Terminal Facilities | Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	1,027
Related party rental payments	1,000
Gordon Trucking Company, Inc [Member]
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		$ 0