Schedule H, Line 4a - Schedule of Delinquent Participant Contributions (Details) - ArcBest 401(k) and DC Retirement Plan - USD ($) |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Schedule H, Line 4a - Schedule of Delinquent Participant Contributions | ||
| Entity tax identification number | 71-0673405 | |
| Plan number | 002 | |
| EBP, Schedule of Delinquent Participant Contribution, Late Repayment Included [true false] | false | |
| Participant Contributions Transferred Late to Plan | $ 298 | |
| Total Fully Corrected under VFCP and PTE 2002-51 | $ 298 | |
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- Definition The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Plan number of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), in three-digit numeric format. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of delinquent participant contribution corrected under Voluntary Fiduciary Correction Program (VFCP) and Prohibited Transaction Exemption (PTE) 2002-51 for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Indicates (true false) whether late participant loan repayment was included in delinquent participant contribution for employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of delinquent participant contribution transferred late to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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