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Discontinued Operation (Tables)
 6 Months Ended
Jun. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]  
Summarized Held for Sale and Discontinued Operations Financial Information
A summary of the results of operations classified as a discontinued operation, net of tax, in the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2021 is as follows:

 Three Months Ended
June 30, 2021		Six Months Ended June 30, 2021
Operating revenue$— $17,087 
Operating expenses:
Purchased transportation— 4,290 
Salaries, wages and employee benefits— 9,674 
Operating leases— 2,907 
Depreciation and amortization— — 
Insurance and claims— 929 
Fuel expense— 644 
Other operating expenses— 2,087 
Total operating expenses— 20,531 
Loss from discontinued operation— (3,444)
Loss on sale of business — (2,860)
Loss from discontinued operation before income taxes— (6,304)
Income tax benefit— (771)
Loss from discontinued operation, net of tax$— $(5,533)