Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details)

v2.4.1.9
Goodwill and Intangible Assets (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Roll Forward]      
Balance as of December 31, 2011 $ 92,052,000us-gaap_Goodwill $ 92,052,000us-gaap_Goodwill  
Impairment loss   0vsec_ImpairmentLoss  
Reclassification to current assets of discontinued operations   0vsec_ReclassificationToCurrentAssetsOfDiscontinuedOperations  
Balance as of December 31, 2012 92,052,000us-gaap_Goodwill 92,052,000us-gaap_Goodwill 92,052,000us-gaap_Goodwill
Balance as of December 31, 2013 92,052,000us-gaap_Goodwill 92,052,000us-gaap_Goodwill 92,052,000us-gaap_Goodwill
Finite-Lived Intangible Assets [Line Items]      
Contract-related 93,304,000us-gaap_FiniteLivedContractualRightsGross 93,304,000us-gaap_FiniteLivedContractualRightsGross  
Acquired technologies 12,400,000vsec_AcquiredTechnologies 12,400,000vsec_AcquiredTechnologies  
Trade name - amortizable 10,100,000us-gaap_FiniteLivedTradeNamesGross 10,100,000us-gaap_FiniteLivedTradeNamesGross  
Intangible assets, Total 115,804,000us-gaap_FiniteLivedIntangibleAssetsGross 115,804,000us-gaap_FiniteLivedIntangibleAssetsGross  
Accumulated Amortization (42,570,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (32,522,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Accumulated Impairment Loss (1,025,000)vsec_AccumulatedImpairmentLoss (1,025,000)vsec_AccumulatedImpairmentLoss  
Net Intangible Assets 72,209,000us-gaap_FiniteLivedIntangibleAssetsNet 82,257,000us-gaap_FiniteLivedIntangibleAssetsNet  
Amortization of Intangible Assets 10,000,000us-gaap_AmortizationOfIntangibleAssets 10,200,000us-gaap_AmortizationOfIntangibleAssets 11,200,000us-gaap_AmortizationOfIntangibleAssets
Finite-Lived Intangible Assets, Net [Abstract]      
2014 9,439,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
2015 9,255,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2016 9,255,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2017 9,255,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
2018 9,190,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Thereafter 25,815,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive    
Total 72,209,000us-gaap_FiniteLivedIntangibleAssetsNet 82,257,000us-gaap_FiniteLivedIntangibleAssetsNet  
Contract and customer-related [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (33,840,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
(26,287,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
 
Accumulated Impairment Loss (1,025,000)vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
(1,025,000)vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
 
Net Intangible Assets 58,439,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
65,992,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
 
Finite-Lived Intangible Assets, Net [Abstract]      
Total 58,439,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
65,992,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractualRightsMember
 
Acquired Technologies [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (4,024,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
(2,896,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Accumulated Impairment Loss 0vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
0vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Net Intangible Assets 8,376,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
9,504,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Useful Life of intangible assets 11 years    
Finite-Lived Intangible Assets, Net [Abstract]      
Total 8,376,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
9,504,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Trade Names - Amortizable [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (4,706,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
(3,339,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
 
Accumulated Impairment Loss 0vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
0vsec_AccumulatedImpairmentLoss
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
 
Net Intangible Assets 5,394,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
6,761,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
 
Useful Life of intangible assets 8 years 4 months 24 days    
Finite-Lived Intangible Assets, Net [Abstract]      
Total 5,394,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
6,761,000us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TradeNamesMember
 
Supply Chain Management Group [Member]      
Goodwill [Roll Forward]      
Balance as of December 31, 2012 61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
Balance as of December 31, 2013 61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
61,169,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_SupplyChainManagementGroupMember
IT, Energy and Management Consulting Group [Member]      
Goodwill [Roll Forward]      
Balance as of December 31, 2012 30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember
30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember
30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember
Balance as of December 31, 2013 $ 30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember
$ 30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember
$ 30,883,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= vsec_ItEnergyAndManagementConsultingGroupMember