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Commitments and Contingencies - Additional Information (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 13, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Loss Contingencies [Line Items] |  |  |  |
Aggregate rent expense under operating leases |  | $ 3,384,000 | $ 2,998,000 | $ 3,061,000
Indemnification liability |  | 0 |  |
Inventories [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Inventory purchase obligations |  | $ 19,134,000 |  |
Office of Foreign Assets Control [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Transaction period under review | 5 years |  |  |
Potential monetary penalties accrued |  |  | $ 900,000 |
Putative Class Action Complaint [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, Lawsuit filing date |  | July 28, 2015 |  |
Loss contingency, Name of defendants |  | Naming VASCO and certain of its current and former executive |  |
Derivative Complaint [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, Lawsuit filing date |  | October 9, 2015 |  |
Loss contingency, Name of defendants |  | VASCO's Board of Directors and certain of its current and former executive officers |  |

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