Organization Nature of Business and Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Organization Nature of Business and Significant Accounting Policies [Abstract]
Number of operating segments	3
Checks drawn in excess of book balances were classified as accounts payable	$ 5,438,000	$ 11,908,000	$ 3,315,000	$ 996,000
Goodwill impairment	0	0	0
Debt issuance cost	5,500,000	5,500,000
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	1,476,000	1,461,000	1,524,000
Provision, charged to expense	2,934,000	1,083,000	1,186,000
Write-off, less recoveries	(1,453,000)	(1,068,000)	(1,249,000)
Ending balance	2,957,000	1,476,000	1,461,000
Building and Building Improvements | Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives	5
Building and Building Improvements | Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives	15
Furniture and Fixtures
Property, Plant and Equipment [Abstract]
Estimated useful lives	5
Equipment | Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives	5
Equipment | Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives	15
Accounts Payable
Organization Nature of Business and Significant Accounting Policies [Abstract]
Checks drawn in excess of book balances were classified as accounts payable	$ 12,563,000	$ 8,300,000
LTL
Organization Nature of Business and Significant Accounting Policies [Abstract]
Number of service centers	45
Number of delivery agents	200
TL
Organization Nature of Business and Significant Accounting Policies [Abstract]
Number of service centers	27
Number of consolidation facilities	5
Number of dispatch offices	22
Number of independent agents	96
TMS
Organization Nature of Business and Significant Accounting Policies [Abstract]
Number of service centers	6
Number of dispatch offices	10