Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended	9 Months Ended
	May 08, 2014	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		$ 2,200	$ 6,800	$ 0
Related party rental payments		3,028	18,645
Payments to Acquire Property, Plant, and Equipment	2,800		121,088	91,845
Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		1,784	5,430
Terminal Facilities
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		1,000	3,200
Terminal Facilities | Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		958	2,975
Related party rental payments		1,000	3,000
Gordon Trucking Company, Inc [Member]
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense				$ 0