Principles Of Consolidation (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	1 Months Ended			12 Months Ended				12 Months Ended	0 Months Ended	12 Months Ended		12 Months Ended
	Nov. 30, 2011	Sep. 30, 2010	Jul. 31, 2009	Jan. 31, 2009	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 01, 2011	Dec. 31, 2012 Labor Force Concentration Risk [Member] Workforce Subject to Collective Bargaining Arrangements [Member]	Sep. 30, 2010 February 17, 2010 Amendment [Member]	Dec. 31, 2010 Sale of Subsidiary Gain (Loss) [Member]	Dec. 31, 2012 JHJ international Transportation Co. [Member]	Dec. 31, 2012 Investments Impairment Charge [Member] JHJ international Transportation Co. [Member]	Dec. 31, 2011 Impairment of Property Plant and Equipment [Member] Jiau [Member]	Dec. 31, 2011 Impairment of Intangible Assets [Member] Jiau [Member]	Mar. 31, 2012 Shanghai Jiayu [Member]	Mar. 31, 2010 Shanghai Jiayu [Member]	Aug. 19, 2008 Shanghai Jiayu [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Reverse stock split, conversion ratio	0.003333									0.04
Percentage of labor force									76.00%
Reduction in wages percentage		15.00%	5.00%	10.00%
Employer pension contribution percentage								25.00%
Rerate reserve as a reduction to accounts receivable					$ 11.9	$ 16.4
Allowance for doubtful accounts					9.8	12.0
Discontinued Operations
Revenue							194.2
Operating loss							(14.0)
Loss from operations before income tax provision							(18.3)
Income tax provision							4.8
Net loss from discontinued operations					0	0	(23.1)
Foreign currency transactions gains					2.0	5.2	8.4
Recognition of foreign currency translation adjustment											5.5
Risk-free rate for maturities of workers' compensation claims					0.40%	0.80%	1.10%
Risk-free rate for property damage and liability claims					0.30%	0.50%	0.70%
Accrued claims and insurance					437.3	500.7
Ownership interest percentage												50.00%				65.00%	65.00%	65.00%
Equity investment impairment					30.8	0	12.3						30.8	1.3	2.7
Accrued asset retirement obligations					5.7	6.7
Net book value of assets held for sale					7.3	39.1
Assets held for sale impairment charge					$ 13.2	$ 17.9	$ 31.1