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Contingencies
9 Months Ended
Sep. 30, 2011
Contingencies [Abstract] 
Contingencies
Note 13. Contingencies
The Company is involved in certain claims and pending litigation primarily arising in the normal course of business. The majority of these claims relate to workers compensation, auto collision and liability, and physical damage and cargo damage. The Company expenses legal fees as incurred and accrues for the uninsured portion of contingent losses from these and other pending claims when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Based on the knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of claims and pending litigation, taking into account existing reserves, will not have a material adverse effect on the Company. However, the results of complex legal proceedings are difficult to predict and the Company’s view of these matters may change in the future as the litigation and events related thereto unfold.