Quarterly report [Sections 13 or 15(d)]

Acquisitions - Narrative (Details)

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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 01, 2025
Dec. 03, 2024
Apr. 24, 2024
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Business Combination [Line Items]                
Goodwill       $ 428,705   $ 428,705   $ 428,263
Cash consideration, net of cash acquired [1]           47,745 $ 112,206  
Measurement period adjustments           (12,900)    
Turbine Weld Industries, LLC                
Business Combination [Line Items]                
Business acquisition, consideration transferred $ 49,900              
Cash acquired from acquisition 900              
Property and equipment, net 12,600              
Goodwill 13,300              
Acquisition related expenses           1,500    
Turbine Weld Industries, LLC | Customer Relationships                
Business Combination [Line Items]                
Intangible asset - customer related $ 24,000              
Useful life (in years) 10 years              
Turbine Controls, Inc. ("TCI")                
Business Combination [Line Items]                
Business acquisition, consideration transferred     $ 122,400          
Cash acquired from acquisition     1,200          
Property and equipment, net     6,434          
Goodwill     40,201          
Intangible asset - customer related     59,000          
Acquisition related expenses       $ 100   $ 2,200    
Cash consideration, net of cash acquired     112,351          
Turbine Controls, Inc. ("TCI") | Common Stock                
Business Combination [Line Items]                
Share consideration, VSE common stock     $ 10,000          
Turbine Controls, Inc. ("TCI") | Customer Relationships                
Business Combination [Line Items]                
Useful life (in years)           10 years    
Kellstrom Aerospace Group, Inc                
Business Combination [Line Items]                
Cash acquired from acquisition   $ 10,600            
Property and equipment, net   10,301            
Goodwill   87,804            
Intangible asset - customer related   41,900            
Acquisition related expenses         $ 1,200 $ 700 $ 1,200  
Cash consideration, net of cash acquired   168,599            
Measurement period adjustments           (12,900)    
Increase in deferred tax liabilities           8,400    
Fair value step up to operating lease right-of-use assets           2,300    
Working capital adjustment           $ 2,200    
Kellstrom Aerospace Group, Inc | Common Stock                
Business Combination [Line Items]                
Share consideration, VSE common stock   $ 20,267            
Kellstrom Aerospace Group, Inc | Customer Relationships                
Business Combination [Line Items]                
Useful life (in years)           8 years    
[1]
(a) The cash flows related to discontinued operations and held-for-sale assets and liabilities have not been segregated, and remain included in the major classes of assets and liabilities. Accordingly, the Consolidated Statements of Cash Flows include the results of continuing and discontinued operations. See Note (3) "Discontinued Operations".