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Fair Value Measurements - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) $ in Thousands, € in Millions | Apr. 03, 2020 USD ($) | Jul. 31, 2019 USD ($) | Jul. 31, 2019 EUR (€) | Apr. 16, 2019 USD ($) | Apr. 16, 2019 EUR (€)
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ARGES GmbH |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Contingent consideration |  | $ 7,900 | € 7.1 |  |
Ingenia-CAT, S.L. |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Contingent consideration |  |  |  | $ 6,600 | € 5.8
Significant Other Unobservable Inputs (Level 3) | ARGES GmbH |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Contingent consideration | $ 7,647 |  |  |  |
Valuation Technique | novt:ValuationTechniqueMonteCarloMethodMember |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ARGES GmbH | Revenue volatility |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 36.0 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ARGES GmbH | Cost of debt |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 1.4 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ARGES GmbH | Discount rate |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 7.3 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Other |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Contingent consideration | $ 3,134 |  |  |  |
Valuation Technique | us-gaap:ValuationTechniqueDiscountedCashFlowMember |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Other | Discount rate |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Asset acquisition, Percentage Applied | 22.8 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Ingenia-CAT, S.L. |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Contingent consideration | $ 6,441 |  |  |  |
Valuation Technique | novt:ValuationTechniqueMonteCarloMethodMember |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Ingenia-CAT, S.L. | Revenue volatility |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 36.0 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Ingenia-CAT, S.L. | Cost of debt |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 0.9 |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Ingenia-CAT, S.L. | Discount rate |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business acquisition, Percentage Applied | 15.3 |  |  |  |

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