XML 44 R33.htm IDEA: XBRL DOCUMENT
v3.19.2

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 189,111 | $ 170,394 | $ 359,030 | $ 347,291
Cost-type |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 33,665 | 42,502 | 61,717 | 94,020
Fixed-price |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 98,014 | 91,336 | 193,521 | 181,843
Time and materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 57,432 | 36,556 | 103,792 | 71,428
USPS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 42,112 | 43,089 | 84,795 | 87,120
DoD |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 75,080 | 82,187 | 137,781 | 169,840
Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 59,176 | 37,481 | 112,735 | 72,604
Other government |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 12,743 | 7,637 | 23,719 | 17,727
Supply Chain Management |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 53,805 | 54,263 | 105,509 | 110,127
Supply Chain Management | Cost-type |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Supply Chain Management | Fixed-price |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 53,805 | 54,263 | 105,509 | 110,127
Supply Chain Management | Time and materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Supply Chain Management | USPS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 42,112 | 43,089 | 84,795 | 87,120
Supply Chain Management | DoD |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 6,461 | 7,525 | 11,303 | 15,701
Supply Chain Management | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 5,090 | 3,413 | 9,070 | 6,799
Supply Chain Management | Other government |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 142 | 236 | 341 | 507
Aviation |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 54,997 | 35,804 | 104,367 | 68,554
Aviation | Cost-type |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 169 | 701 | 381 | 1,098
Aviation | Fixed-price |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 25,056 | 19,869 | 48,992 | 39,373
Aviation | Time and materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 29,772 | 15,234 | 54,994 | 28,083
Aviation | USPS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Aviation | DoD |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 260 | 1,025 | 1,155 | 2,240
Aviation | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 54,086 | 34,037 | 102,561 | 65,572
Aviation | Other government |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 651 | 742 | 651 | 742
Federal Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 80,309 | 80,327 | 149,154 | 168,610
Federal Services | Cost-type |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 33,496 | 41,801 | 61,336 | 92,922
Federal Services | Fixed-price |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 19,153 | 17,204 | 39,020 | 32,343
Federal Services | Time and materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 27,660 | 21,322 | 48,798 | 43,345
Federal Services | USPS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 0 | 0 | 0
Federal Services | DoD |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 68,359 | 73,637 | 125,323 | 151,899
Federal Services | Commercial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0 | 31 | 1,104 | 233
Federal Services | Other government |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 11,950 | $ 6,659 | $ 22,727 | $ 16,478

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=vsec_CostTypeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_FixedPriceContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_TimeAndMaterialsContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=vsec_U.S.PostalServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=vsec_DepartmentofDefenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=vsec_CommercialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=vsec_OtherGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vsec_SupplyChainManagementGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vsec_AviationAcquisitionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vsec_FederalGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |