Quarterly report pursuant to Section 13 or 15(d)

Acquisition (Details)

v2.4.1.9
Acquisition (Details) (USD $)
3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Jan. 28, 2015
Dec. 31, 2014
Business Acquisition [Line Items]        
Revenue $ 120,791,000us-gaap_Revenues $ 119,409,000us-gaap_Revenues    
Operating income 10,684,000us-gaap_OperatingIncomeLoss 11,357,000us-gaap_OperatingIncomeLoss    
Summary of fair value adjustments for assets and liabilities assumed [Abstract]        
Goodwill 193,772,000us-gaap_Goodwill     92,052,000us-gaap_Goodwill
Aviation Group [Member]        
Business Acquisition [Line Items]        
Number of business acquired     4vsec_BusinessAcquisitionNumberOfBusinessesAcquired
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Additional potential consideration payment - two year earn-out     40,000,000vsec_MaximumPotentialCashPayment
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Additional potential consideration payment - one year earn-out     5,000,000vsec_BusinessAcquisitionCostOfAcquiredEntityAdditionalPurchasePricePayable
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Escrow account     18,000,000us-gaap_EscrowDepositsRelatedToPropertySales
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Revenue 22,800,000us-gaap_Revenues
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
     
Operating income 2,100,000us-gaap_OperatingIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
     
Estimated cash and net working capital adjustment     5,000,000vsec_vse_BusinessAcquisitionEstimatedCashAndWorkingCapitalAdjustment
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Estimated net working capital adjustment 2,900,000vsec_BusinessAcquisitionEstimatedWorkingCapitalAdjustment
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
     
Summary of fair value adjustments for assets and liabilities assumed [Abstract]        
Cash     686,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Accounts Receivable     11,104,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Inventory     55,544,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Prepaid expenses and other current assets     2,641,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Property and equipment     11,461,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Goodwill     101,720,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Accounts payable     (8,688,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Accrued expenses and other current liabilities     (4,450,000)vsec_vse_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedExpensesAndOtherCurrentLiabilities
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Long-term deferred tax liability     (35,861,000)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Cash consideration     192,357,000vsec_vse_BusinessAcquisitionCostOfAcquiredEntityInitialPurchasePrice
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Acquisition date fair value of earn-out obligation     35,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Total     227,357,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
 
Acquisition-related expenses 300,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
     
Business Acquisition, Pro Forma Information [Abstract]        
Revenue 128,196,000us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
148,997,000us-gaap_BusinessAcquisitionsProFormaRevenue
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
   
Income from continuing operations 5,383,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
7,143,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
   
Basic earnings per share (in dollars per share) $ 1.00us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
$ 1.34us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
   
Diluted earnings per share (in dollars per share) $ 1.00us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
$ 1.33us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
   
Aviation Group [Member] | Customer Relationships [Member]        
Summary of fair value adjustments for assets and liabilities assumed [Abstract]        
Intangible Assets     85,700,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
 
Amortization finite-lived intangible assets     14 years  
Aviation Group [Member] | Trade Names [Member]        
Summary of fair value adjustments for assets and liabilities assumed [Abstract]        
Intangible Assets     $ 7,500,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
/ us-gaap_BusinessAcquisitionAxis
= vsec_AviationAcquisitionsMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksAndTradeNamesMember
 
Amortization finite-lived intangible assets     9 years