Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.21.2
Commitments and Contingencies (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
USD ($)
Other Commitments [Line Items]  
Liability insurance coverage $ 100
Self-insurance retention workers' compensation 500
Aggregate deductible for claims between $0 and $3,000 | Expedited Freight  
Other Commitments [Line Items]  
Company Risk Retention 3,000
Aggregate deductible for claims between $0 and $2,000 | Expedited Freight  
Other Commitments [Line Items]  
Company Risk Retention 2,000
Aggregate deductible for claims between $3,000 and $5,000 | Expedited Freight  
Other Commitments [Line Items]  
Company Risk Retention 6,000
Aggregate deductible for claims between $5,000 and $10,000 | Expedited Freight  
Other Commitments [Line Items]  
Company Risk Retention 5,000
Aggregate deductible for claims between $0 and $250 | Intermodal  
Other Commitments [Line Items]  
Company Risk Retention 250
Minimum | Aggregate deductible for claims between $0 and $3,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 0
Minimum | Aggregate deductible for claims between $0 and $2,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 0
Minimum | Aggregate deductible for claims between $3,000 and $5,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 3,000
Minimum | Aggregate deductible for claims between $5,000 and $10,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 5,000
Minimum | Aggregate deductible for claims between $0 and $250 | Intermodal  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 0
Maximum | Aggregate deductible for claims between $0 and $3,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 3,000
Maximum | Aggregate deductible for claims between $0 and $2,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 2,000
Maximum | Aggregate deductible for claims between $3,000 and $5,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 5,000
Maximum | Aggregate deductible for claims between $5,000 and $10,000  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 10,000
Maximum | Aggregate deductible for claims between $5,000 and $10,000 | Expedited Freight  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range 10,000
Maximum | Aggregate deductible for claims between $0 and $250 | Intermodal  
Other Commitments [Line Items]  
Self-insurance retention liability additional deductible applicable range $ 250