| Total operating revenues | $1.56B-15.6% | $1.85B+11.1% | $1.66B-17.5% | $2.02B | | | | | | | | | | | | | |
| Purchased transportation and equipment rent, including related party amounts of $18, $147 and $316, respectively | $310.4M-35.7% | $482.9M-15.5% | $571.2M-32.6% | $847.4M | | | | | | | | | | | | | |
| Direct personnel and related benefits, including related party amounts of $75,224, $63,143 and $54,169, respectively | $685.5M+17.5% | $583.3M+7.5% | $542.8M+4.3% | $520.3M | | | | | | | | | | | | | |
| Operating supplies and expenses, including related party amounts of $9,060, $19,248 and $9,221, respectively | $205.4M-30.1% | $293.9M+70.2% | $172.6M-2.7% | $177.4M | | | | | | | | | | | | | |
| Commission expense | $17.1M-37.3% | $27.3M-13.0% | $31.4M-22.1% | $40.3M | | | | | | | | | | | | | |
| Occupancy expense, including related party amounts of $17,938, $14,174 and $13,649, respectively | $49.4M+11.7% | $44.2M-0.2% | $44.3M+7.3% | $41.3M | | | | | | | | | | | | | |
| General and administrative, including related party amounts of $11,276, $12,280 and $12,396, respectively | $54.2M-5.0% | $57.0M+13.6% | $50.2M+2.6% | $48.9M | | | | | | | | | | | | | |
| Insurance and claims, including related party amounts of $16,898, $17,855 and $16,739, respectively | $30.1M+13.8% | $26.4M-2.7% | $27.2M+19.4% | $22.7M | | | | | | | | | | | | | |
| Depreciation and amortization | $146.2M+17.8% | $124.2M+61.2% | $77.0M+0.5% | $76.7M | | | | | | | | | | | | | |
| Impairment expense | $124.4M+3244.4% | $3.7M | $0 | $0 | | | | | | | | | | | | | |
| Total operating expenses | $1.62B-1.2% | $1.64B+8.3% | $1.52B-14.6% | $1.78B | | | | | | | | | | | | | |
| Income (loss) from operations | -$64.3M-131.7% | $203.1M+39.6% | $145.4M-39.5% | $240.4M | | | | | | | | | | | | | |
| Interest income | $11.2M+162.7% | $4.3M+193.5% | $1.5M+1001.5% | $132K | | | | | | | | | | | | | |
| Interest expense | -$49.0M-42.2% | -$34.5M-42.4% | -$24.2M-48.6% | -$16.3M | | | | | | | | | | | | | |
| Other non-operating income | $2.1M+155.9% | $837K-47.9% | $1.6M+40.7% | $1.1M | | | | | | | | | | | | | |
| Income (loss) before income taxes | -$100.0M-157.6% | $173.7M+39.8% | $124.3M-44.9% | $225.4M | | | | | | | | | | | | | |
| Income tax expense (benefit) | -$139K-100.3% | $43.8M+39.6% | $31.4M-44.7% | $56.8M | | | | | | | | | | | | | |
| Net Income (Loss) | -$99.9M-176.9% | $129.9M+39.8% | $92.9M-44.9% | $168.6M | | | | | | | | | | | | | |
| Basic | -$4K-176.7% | $5K+39.9% | $4K-44.6% | $6K | | | | | | | | | | | | | |
| Diluted | -$4K-176.9% | $5K+39.7% | $4K-44.6% | $6K | | | | | | | | | | | | | |
| Basic | $26.3M+0.0% | $26.3M+0.1% | $26.3M-0.7% | $26.5M | | | | | | | | | | | | | |
| Diluted | $26.3M-0.0% | $26.3M+0.2% | $26.3M-0.7% | $26.5M | | | | | | | | | | | | | |
| Dividends declared per common share | $420.00+0.0% | $420.00+0.0% | $420.00+0.0% | $420.00 | | | | | | | | | | | | | |
| Truckload services [Member] |
| Brokerage services [Member] |
| Intermodal services [Member] |
| Dedicated services [Member] |
| Value-added services [Member] |