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Discontinued Operation and Held for Sale (Tables)
 12 Months Ended
Dec. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]  
Weighted Average Assumptions
The weighted average assumptions under the Monte Carlo simulation model were as follows:
February 12, 2021
Counterparty credit spread1.2%
Earnings before interest, taxes, depreciation and amortization discount rate15.0%
Asset volatility55.0%
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 Consolidated Statements of Comprehensive Income for the years ended December 31, 2022, 2021 and 2020 is as follows:

 Year Ended
 December 31,
2022		December 31,
2021		December 31,
2020
Operating revenue$— $17,776 $141,433 
Operating expenses:  
Purchased transportation— 3,381 33,979 
Salaries, wages and employee benefits— 9,458 65,695 
Operating leases— 2,289 21,982 
Depreciation and amortization— — 1,657 
Insurance and claims— 929 6,205 
Fuel expense— 508 4,279 
Other operating expenses— 1,627 17,587 
Impairment charge— 6,967 28,384 
Total operating expenses— 25,159 179,768 
Loss from discontinued operation— (7,383)(38,335)
Loss on sale of business— (2,860)— 
Loss from discontinued operation before income taxes— (10,243)(38,335)
Income tax (benefit) expense— (11)(9,301)
Loss from discontinued operation, net of tax$— $(10,232)$(29,034)