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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
| Summary Compensation Table Total for CEO ($)(1) | Compensation Actually Paid to CEO ($)(2) | Summary Compensation Table Total for Interim CEO ($)(1) | Compensation Actually Paid to Interim CEO ($)(2) | Average Summary Compensation Table Total for Non-CEO NEOs ($)(1) | Average Compensation Actually Paid to Non-CEO NEOs ($)(1)(2)(3) | Value of Initial Fixed $100 Investment (4) based on: | Net Income ($ in 000’s) | Adjusted Operating Margin(6)
Year | Total Shareholder Return ($) | Peer Group Total Shareholder Return ($)(5)
2023 | 27,966,653 |  | 26,532,662 |  | 2,796,530 |  | 2,684,241 |  | 5,528,381 |  | 4,028,868 |  | 121.38 |  | 124.82 |  | 325,129 |  | 19.8 | %
2022 | 10,529,870 |  | 9,724,702 |  | N/A | N/A | 3,425,442 |  | 3,231,790 |  | 125.27 |  | 101.23 |  | 940,524 |  | 35.3 | %
2021 | 10,233,276 |  | 13,016,105 |  | N/A | N/A | 3,328,925 |  | 4,066,077 |  | 144.14 |  | 126.45 |  | 844,245 |  | 34.3 | %
2020 | 5,432,670 |  | 7,581,756 |  | N/A | N/A | 1,891,881 |  | 2,370,415 |  | 123.02 |  | 104.41 |  | 506,421 |  | 27.9 | %
Company Selected Measure Name | adjusted operating margin |  |  |
Named Executive Officers, Footnote | Amounts reported in the compensation columns above reflect the following individuals:
Year | CEO | Interim CEO | Non-CEO NEOs
2023 | David P. Bozeman | Scott P. Anderson | Michael P. Zechmeister, Arun D. Rajan, Angela K. Freeman, Michael J. Short
2022 | Robert C. Biesterfeld Jr. | N/A | Michael P. Zechmeister, Arun D. Rajan, Mac S. Pinkerton, Michael J. Short
2021 | Robert C. Biesterfeld Jr. | N/A | Michael P. Zechmeister, Mac S. Pinkerton, Arun D. Rajan, Michael J. Short
2020 | Robert C. Biesterfeld Jr. | N/A | Michael P. Zechmeister, Christopher J. O’Brien, Mac S. Pinkerton, Michael J. Short
Adjustment To PEO Compensation, Footnote | Amounts reported represent the amount of “Compensation Actually Paid,” as computed in accordance with SEC rules. Our NEOs did not participate in a pension plan; therefore, we did not report a change in pension value for any of the years reflected in this table, and a deduction from the Summary Compensation Table total related to pension value is not needed. Compensation Actually Paid to CEO and Compensation Actually Paid to Interim CEO reflects the following adjustments from Total Compensation reported in the Summary Compensation Table:
| 2023 ($) |  |  |
Compensation Reported in Summary Compensation Table for CEO | 27,966,653 |  |  |  |
Less: Value of stock and option awards reported in Summary Compensation Table | (21,512,222) |  |  |  |
Plus: Year-end fair value of awards granted during the fiscal year that are unvested and outstanding | 19,666,180 |  |  |  |
Plus: Year-end fair value of awards granted during the fiscal year that vested in the fiscal year | 412,051 |  |  |  |
Plus: Increase (decrease) the difference between fair value from the end of the prior fiscal year to the vesting date of equity awards that were granted during a prior fiscal year that vested in this fiscal year | — |  |  |  |
Plus: Increase (decrease) the difference between fair value of equity awards from the end of the prior fiscal year to the end of the fiscal year of equity awards that were granted during a prior fiscal year that remain unvested and outstanding during the fiscal year | — |  |  |  |
Less: Prior fiscal year-end fair value of awards that were granted during a prior fiscal year that failed to vest during the fiscal year | — |  |  |  |
Total Adjustments | (1,433,991) |  |  |  |
Compensation Actually Paid to CEO | $26,532,662 |  |  |  |
| 2023 ($) |  |  |
Compensation Reported in Summary Compensation Table for Interim CEO | 2,796,530 |  |  |  |
Less: Value of stock and option awards reported in Summary Compensation Table | (1,988,623) |  |  |  |
Plus: Year-end fair value of awards granted during the fiscal year that are unvested and outstanding | 1,876,334 |  |  |  |
Plus: Year-end fair value of awards granted during the fiscal year that vested in the fiscal year | — |  |  |  |
Plus: Increase (decrease) the difference between fair value from the end of the prior fiscal year to the vesting date of equity awards that were granted during a prior fiscal year that vested in this fiscal year | — |  |  |  |
Plus: Increase (decrease) the difference between fair value from the end of the prior fiscal year to the end of the fiscal year of equity awards that were granted during a prior fiscal year that remain unvested and outstanding during the fiscal year | — |  |  |  |
Less: Prior fiscal year-end fair value of awards that were granted during a prior fiscal year that failed to vest in the fiscal year | — |  |  |  |
Total Adjustments | (112,289) |  |  |  |
Compensation Actually Paid to Interim CEO | $2,684,241 |  |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 5,528,381 | $ 3,425,442 | $ 3,328,925 | $ 1,891,881
Non-PEO NEO Average Compensation Actually Paid Amount | $ 4,028,868 | 3,231,790 | 4,066,077 | 2,370,415
Adjustment to Non-PEO NEO Compensation Footnote | Refer above for the list of the Non-CEO NEOs included in the figures for 2020 through 2023. Average Compensation Actually Paid to Non-CEO NEOs reflects the following adjustments from Average Total Compensation reported in the Summary Compensation Table:
| 2023 ($) |  |  |
Average Compensation Reported in Summary Compensation Table | 5,528,381 |  |  |  |
Less: Value of stock and option awards reported in Summary Compensation Table | (4,574,553) |  |  |  |
Plus: Year-end value of awards granted during the fiscal year that are unvested and outstanding | 3,497,189 |  |  |  |
Plus: Year-end value of awards granted during the fiscal year that vested in the fiscal year | 284,502 |  |  |  |
Plus: Increase (decrease) the difference between fair value from the end of the prior fiscal year to the vesting date of equity awards that were granted during a prior fiscal year that vested in this fiscal year | (46,203) |  |  |  |
Plus: Increase (decrease) the difference between fair value from the end of the prior fiscal year to the end of the fiscal year of equity awards that were granted during a prior fiscal year that remain unvested and outstanding during the fiscal year | (57,216) |  |  |  |
Less: Prior year fair value of awards that were granted during a prior fiscal year that failed to vest in the fiscal year | (603,232) |  |  |  |
Total Adjustments | (1,499,513) |  |  |  |
Average Compensation Actually Paid | $4,028,868 |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return | (1)TSR in the above chart, reflects the cumulative return of $100 as if invested on December 31, 2019, including reinvestment of any dividends. |  |  |
Compensation Actually Paid vs. Net Income | Compensation Actually Paid versus Total Net Income |  |  |
Compensation Actually Paid vs. Company Selected Measure | Compensation Actually Paid versus Adjusted Operating Margin % |  |  |
Total Shareholder Return Vs Peer Group | Total shareholder return (“TSR”) is calculated based on a fixed investment of one hundred dollars measured from the market close on December 31, 2019 (the last trading day of 2019) through and including the end of the fiscal year for each year reported in the table.Our peer group used for the TSR calculation is the NASDAQ Transportation Index, which is the industry index used to show our performance in our Form 10-K. |  |  |
Tabular List, Table | The following table lists the most important financial performance measures we used to link Compensation Actually Paid to the NEOs for fiscal 2023 to our performance: Financial Performance Measures
Adjusted Operating Margin(1)
Diluted Earnings Per Share
Adjusted Gross Profit(1)
(1)Additional information about adjusted gross profit and adjusted operating margin, including a reconciliation to gross profit and operating margin, is available in our annual report on Form 10-K for the year ended December 31, 2023. |  |  |
Total Shareholder Return Amount | $ 121.38 | 125.27 | 144.14 | 123.02
Peer Group Total Shareholder Return Amount | 124.82 | 101.23 | 126.45 | 104.41
Net Income (Loss) | $ 325,129 | $ 940,524 | $ 844,245 | $ 506,421
Company Selected Measure Amount | 0.198 | 0.353 | 0.343 | 0.279
PEO Name |  | Robert C. Biesterfeld Jr. | Robert C. Biesterfeld Jr. | Robert C. Biesterfeld Jr.
Additional 402(v) Disclosure | (1)Additional information about adjusted gross profit and adjusted operating margin, including a reconciliation to gross profit and operating margin, is available in our annual report on Form 10-K for the year ended December 31, 2023. |  |  |
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Non-GAAP Measure Description | Our company-selected measure, which is the measure we believe represents the most important financial performance not otherwise presented in the table above that we use to link Compensation Actually Paid to our NEOs for fiscal 2023 to our company’s performance, is adjusted operating margin. |  |  |
David P. Bozeman [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
PEO Total Compensation Amount | $ 27,966,653 |  |  |
PEO Actually Paid Compensation Amount | $ 26,532,662 |  |  |
PEO Name | David P. Bozeman |  |  |
Scott P. Anderson [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
PEO Total Compensation Amount | $ 2,796,530 |  |  |
PEO Actually Paid Compensation Amount | $ 2,684,241 |  |  |
PEO Name | Scott P. Anderson |  |  |
Robert C. Biesterfeld Jr. [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
PEO Total Compensation Amount |  | $ 10,529,870 | $ 10,233,276 | $ 5,432,670
PEO Actually Paid Compensation Amount |  | $ 9,724,702 | $ 13,016,105 | $ 7,581,756
PEO | David P. Bozeman [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (1,433,991) |  |  |
PEO | David P. Bozeman [Member] | Value Of Awards, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (21,512,222) |  |  |
PEO | David P. Bozeman [Member] | Stock Awards Unvested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 19,666,180 |  |  |
PEO | David P. Bozeman [Member] | Stock Awards Vested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 412,051 |  |  |
PEO | David P. Bozeman [Member] | Equity Awards Reported Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | David P. Bozeman [Member] | Equity Awards Granted in Prior Years, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | David P. Bozeman [Member] | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | Scott P. Anderson [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (112,289) |  |  |
PEO | Scott P. Anderson [Member] | Value Of Awards, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (1,988,623) |  |  |
PEO | Scott P. Anderson [Member] | Stock Awards Unvested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 1,876,334 |  |  |
PEO | Scott P. Anderson [Member] | Stock Awards Vested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | Scott P. Anderson [Member] | Equity Awards Reported Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | Scott P. Anderson [Member] | Equity Awards Granted in Prior Years, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
PEO | Scott P. Anderson [Member] | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |
Non-PEO NEO |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (1,499,513) |  |  |
Non-PEO NEO | Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Adjusted Operating Margin(1) |  |  |
Non-PEO NEO | Measure:: 3 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Diluted Earnings Per Share |  |  |
Non-PEO NEO | Measure:: 4 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Adjusted Gross Profit(1) |  |  |
Non-PEO NEO | Value Of Awards, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (4,574,553) |  |  |
Non-PEO NEO | Stock Awards Unvested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 3,497,189 |  |  |
Non-PEO NEO | Stock Awards Vested, Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 284,502 |  |  |
Non-PEO NEO | Equity Awards Reported Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (46,203) |  |  |
Non-PEO NEO | Equity Awards Granted in Prior Years, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (57,216) |  |  |
Non-PEO NEO | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (603,232) |  |  |

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