Note 4 - Plan Termination (Details Textual)	12 Months Ended
Dec. 31, 2025
EBP 71-0335111 001 [Member]
EBP, Termination of Plan, Vested Percentage	100.00%

The percent of the employee stock purchase, saving, or similar plan (employee benefit plan (EBP) that vests upon termination.

No definition available.

Name:	jbht_EBPTerminationOfPlanVestedPercentage
Namespace Prefix:	jbht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration