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Concession Agreement Expiration Date

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

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The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.

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Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The foreign exchange rate used to translate amounts denominated in the functional currency to the reporting currency.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Changes in Operations (Details 2)	9 Months Ended	1 Months Ended			9 Months Ended	12 Months Ended				9 Months Ended
Changes in Operations (Details 2)	Sep. 30, 2011	Dec. 31, 2010 United States Revolving Loan [Member] FreightLink [Member] USD ($)	Dec. 31, 2010 Australia Revolving Loan [Member] FreightLink [Member] USD ($)	Dec. 31, 2010 Australia Revolving Loan [Member] FreightLink [Member] AUD	Sep. 30, 2011 FreightLink [Member]	Dec. 31, 2011 FreightLink [Member] USD ($)	Dec. 31, 2011 FreightLink [Member] AUD	Dec. 01, 2010 FreightLink [Member] USD ($)	Dec. 01, 2010 FreightLink [Member] AUD	Sep. 30, 2011 Australia
Cost of acquired entity								$ 320,023,000	331,936,000
Long-term debt assumed								1,741,000	1,806,000
Non-interest bearing loan								48,200,000	50,000,000
Credit Agreement maturity date	Jul. 29, 2016				Jan. 14, 2054
Concession Agreement Expiration Date					Jan. 14, 2054
Business acquisition revenue to be eliminated						24,000,000	25,000,000
Foreign Currency Exchange Rate, Translation								0.96	0.96
Purchase of FreightLink assets through borrowings		$ 100,000,000	$ 94,000,000	97,000,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate										30.00%