Annual report pursuant to Section 13 and 15(d)

Segment Reporting - Segment Information (Details)

v3.24.0.1
Segment Reporting - Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information [Line Items]                      
Revenues $ 338,428 $ 340,976 $ 333,622 $ 357,709 $ 403,039 $ 433,201 $ 442,191 $ 401,203 $ 1,370,735 $ 1,679,634 $ 1,387,227
Amortization                 16,039 12,213 10,539
Income (loss) from continuing operations                 88,210 247,591 147,025
Total assets 2,979,533       1,208,076       2,979,533 1,208,076  
Current assets held for sale 0       34,942       0 34,942  
Noncurrent assets held for sale 0       101,027       0 101,027  
Discontinued Operations, Held-for-Sale                      
Segment Reporting Information [Line Items]                      
Current assets held for sale 0       34,942       0 34,942  
Noncurrent assets held for sale 0       101,027       0 101,027  
Continuing Operations                      
Segment Reporting Information [Line Items]                      
Revenues                 1,370,409 1,680,112 1,388,018
Depreciation                 41,366 30,339 24,427
Amortization                 16,039 12,213 10,539
Income (loss) from continuing operations                 88,210 247,591 147,025
Purchases of property and equipment                 30,725 39,254 38,375
Total assets 2,979,533       1,072,107       2,979,533 1,072,107  
Expedited Freight                      
Segment Reporting Information [Line Items]                      
Revenues                 1,096,958 1,260,121 1,099,070
Expedited Freight | Network                      
Segment Reporting Information [Line Items]                      
Revenues                 845,949 947,817 805,015
Expedited Freight | Truckload business                      
Segment Reporting Information [Line Items]                      
Revenues                 159,513 221,979 223,026
Expedited Freight | Other                      
Segment Reporting Information [Line Items]                      
Revenues                 91,496 90,325 71,029
Operating Segments | Expedited Freight                      
Segment Reporting Information [Line Items]                      
Revenues                 1,096,484 1,260,414 1,098,847
Depreciation                 31,626 23,597 20,826
Amortization                 5,788 3,461 3,430
Income (loss) from continuing operations                 116,040 192,583 127,045
Purchases of property and equipment                 29,928 37,984 35,630
Operating Segments | Expedited Freight | Continuing Operations                      
Segment Reporting Information [Line Items]                      
Total assets 661,270       547,417       661,270 547,417  
Operating Segments | Intermodal                      
Segment Reporting Information [Line Items]                      
Revenues                 273,925 419,698 289,171
Depreciation                 9,740 6,641 3,538
Amortization                 10,251 8,752 7,109
Income (loss) from continuing operations                 25,327 56,874 30,117
Purchases of property and equipment                 797 1,270 2,745
Operating Segments | Intermodal | Continuing Operations                      
Segment Reporting Information [Line Items]                      
Total assets 270,421       322,001       270,421 322,001  
Corporate                      
Segment Reporting Information [Line Items]                      
Revenues                 0 0 0
Depreciation                 0 101 63
Amortization                 0 0 0
Income (loss) from continuing operations                 (53,157) (1,866) (10,137)
Purchases of property and equipment                 0 0 0
Corporate | Continuing Operations                      
Segment Reporting Information [Line Items]                      
Total assets 2,047,901       202,756       2,047,901 202,756  
Eliminations                      
Segment Reporting Information [Line Items]                      
Revenues                 (266) (205) (1,057)
Depreciation                 0 0 0
Amortization                 0 0 0
Income (loss) from continuing operations                 0 0 0
Purchases of property and equipment                 0 0 0
Eliminations | Continuing Operations                      
Segment Reporting Information [Line Items]                      
Revenues                 326 (478) (791)
Total assets $ (59)       $ (67)       (59) (67)  
Eliminations | Discontinued Operations                      
Segment Reporting Information [Line Items]                      
Revenues                 (326) 478 791
Eliminations | Expedited Freight                      
Segment Reporting Information [Line Items]                      
Revenues                 (474) 293 (223)
Eliminations | Intermodal                      
Segment Reporting Information [Line Items]                      
Revenues                 $ (118) $ (20) $ (43)