Principles Of Consolidation (Details) (USD $)
In Millions, unless otherwise specified
 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Nov. 30, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Labor Force Concentration Risk [Member]
Workforce Subject to Collective Bargaining Arrangements [Member]
Sep. 30, 2010
February 17, 2010 Amendment [Member]
Dec. 31, 2012
JHJ international Transportation Co. [Member]
Dec. 31, 2013
JHJ international Transportation Co. [Member]
Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Member]
Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Member]
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Member]
Mar. 31, 2012
Shanghai Jiayu [Member]
Mar. 31, 2010
Shanghai Jiayu [Member]
Aug. 19, 2008
Shanghai Jiayu [Member]
Dec. 31, 2011
Property, Plant and Equipment [Member]
Jiau [Member]
Dec. 31, 2011
Intangible Assets [Member]
Jiau [Member]
Impaired Long-Lived Assets Held and Used [Line Items]                                
Reverse stock split, conversion ratio 0.003333     0.003333   0.04                    
Percentage of labor force         78.00%                      
Rerate reserve as a reduction to accounts receivable   $ 9.6 $ 11.9                          
Allowance for doubtful accounts   9.3 9.8                          
Foreign currency transactions gains   3.7 2.0 5.2                        
Risk-free rate for maturities of workers' compensation claims   0.50% 0.40% 0.80%                        
Risk-free rate for property damage and liability claims   0.30% 0.30% 0.50%                        
Accrued claims and insurance   400.4 437.3                          
Ownership interest percentage               50.00%       65.00% 65.00% 65.00%    
Equity investment impairment   0 30.8 0     30.8               1.3 2.7
Net book value of assets held for sale   17.2 7.3                          
Assets held for sale impairment charge   3.9 13.2 17.9                        
Reclassification of net losses to net income                 $ 9.6 $ 9.0 $ 9.6