VSE Corporation Quarterly report [Sections 13 or 15(d)]

Fair Value Measurements - Financial Assets and Liabilities (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-COLI assets held in Deferred Supplemental Compensation Plan	$ 691	$ 629
Level 2 \| Accrued expenses and other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps - long-term	686	0
Level 2 \| Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps - long-term	$ 1,592	$ 4,093