VSE Corporation Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Earn-out Obligation Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 0	$ 36,700
Acquisition date fair value of contingent consideration	2,000
Earn-out payments	(750)	(31,700)
Reclassification from long-term to current		0
Fair value adjustment included in costs and operating expenses		(5,000)
Ending balance	1,250	0
Current portion
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0	31,700
Acquisition date fair value of contingent consideration	1,750
Earn-out payments	(750)	(31,700)
Reclassification from long-term to current		5,000
Fair value adjustment included in costs and operating expenses		(5,000)
Ending balance	1,000	0
Long-term portion
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	0	5,000
Acquisition date fair value of contingent consideration	250
Earn-out payments	0	0
Reclassification from long-term to current		(5,000)
Fair value adjustment included in costs and operating expenses		0
Ending balance	$ 250	$ 0