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General (Details) - 2.00% senior notes due January 14, 2022 $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 26, 2020 USD ($) | Sep. 28, 2019 USD ($) | Jun. 09, 2015 EUR (€)
Debt Instrument [Line Items] |  |  |
Aggregate principal amount of debts | € |  |  | € 500,000,000
Interest rate percentage | 2.00% |  | 2.00%
Increase (decrease) in debt value | $ 21,499 | $ (25,102) |
Increase (decrease) in debt value, net of taxes | $ 16,331 | $ (19,067) |

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