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Fair Value Measurements - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) $ in Thousands, € in Millions | 9 Months Ended |  |  |  |  |  |
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Oct. 01, 2021 USD ($) | Oct. 01, 2021 EUR (€) | Aug. 30, 2021 USD ($) | Apr. 02, 2021 USD ($) | Apr. 02, 2021 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 EUR (€) | Jul. 31, 2019 USD ($) | Jul. 31, 2019 EUR (€) | Apr. 16, 2019 USD ($) | Apr. 16, 2019 EUR (€)
ATI Industrial Automation, Inc. |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  | $ 51,900 |  |  |  |  |  |  |  |
ARGES GmbH |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 4,300 | € 3.7 |  |  |  | $ 5,100 | € 4.1 | $ 7,900 | € 7.1 |  |
Ingenia-CAT, S.L. |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  | $ 2,900 | € 2.4 | $ 2,900 | € 2.3 |  |  | $ 6,600 | € 5.8
Significant Other Unobservable Inputs (Level 3) | ATI Industrial Automation, Inc. |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation Technique | novt:ValuationTechniqueMonteCarloMethodMember |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 51,900 |  |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ATI Industrial Automation, Inc. | EBITDA Risk Premium |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Business acquisition, Percentage Applied | 7.2 | 7.2 |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ATI Industrial Automation, Inc. | EBITDA Volatility |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Business acquisition, Percentage Applied | 27.0 | 27.0 |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ATI Industrial Automation, Inc. | Credit Spread |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Business acquisition, Percentage Applied | 2.1 | 2.1 |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | ARGES GmbH |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation Technique | novt:ValuationTechniqueMonteCarloMethodMember |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 4,282 |  |  |  |  |  |  |  |  |  |
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 | 21.0 | 21.0 |  |  |  |  |  |  |  |  |
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 | 2.6 | 2.6 |  |  |  |  |  |  |  |  |
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 | 3.7 | 3.7 |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Ingenia-CAT, S.L. |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation Technique | novt:ValuationTechniqueMonteCarloMethodMember |  |  |  |  |  |  |  |  |  |
Contingent consideration | $ 1,493 |  |  |  |  |  |  |  |  |  |
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 | 38.5 | 38.5 |  |  |  |  |  |  |  |  |
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 | 3.1 | 3.1 |  |  |  |  |  |  |  |  |
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 | 9.6 | 9.6 |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Other Acquisitions |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Valuation Technique | us-gaap:ValuationTechniqueDiscountedCashFlowMember | us-gaap:ValuationTechniqueDiscountedCashFlowMember |  |  |  |  |  |  |  |  |
Contingent consideration | $ 1,399 |  |  |  |  |  |  |  |  |  |
Significant Other Unobservable Inputs (Level 3) | Other Acquisitions | Discount rate |  |  |  |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |
Asset acquisition, Percentage Applied | 22.8 | 22.8 |  |  |  |  |  |  |  |  |

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