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v3.20.2

Debt - Narrative (Details) |  |  |  |  |  | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
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Apr. 03, 2020 USD ($) | Mar. 25, 2020 USD ($) | Jan. 16, 2018 USD ($) | Oct. 13, 2017 USD ($) advance | Mar. 04, 2016 USD ($) | Sep. 26, 2020 USD ($) | Sep. 28, 2019 USD ($) | Sep. 26, 2020 USD ($) | Sep. 28, 2019 USD ($) | Apr. 02, 2020 USD ($) | Dec. 28, 2019 USD ($) | Nov. 15, 2017 USD ($) series | Oct. 12, 2017 USD ($) | Feb. 15, 2017 USD ($) | Dec. 08, 2016 USD ($) series | Dec. 08, 2016 EUR (€) series
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds of revolving credit facility |  | $ 100,000,000.0 |  |  |  |  |  | $ 240,000,000 | $ 0 |  |  |  |  |  |  |
Cash paid during the period for interest |  |  |  |  |  | $ 6,400,000 | $ 6,400,000 | $ 17,228,000 | $ 17,872,000 |  |  |  |  |  |  |
Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt term (in years) |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 700,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Additional uncommitted borrowing capacity |  |  |  | $ 300,000,000.0 | 150,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Additional uncommitted borrowing capacity, minimum increments |  |  |  |  | $ 25,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Number of advances | advance |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (percent) |  |  |  |  |  | 1.90% |  | 1.90% |  |  |  |  |  |  |  |
Letter of credit outstanding (less than) |  |  |  |  |  | $ 0 |  | $ 0 |  |  |  |  |  |  |  |
Credit Agreement | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee (percent) |  |  |  |  | 0.125% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee (percent) |  |  |  |  | 0.20% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | Base Rate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  | 0.25% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | Base Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |
Credit Agreement | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 700,000,000.0 | $ 575,000,000.0 |  |  |  |  |  |  |  | $ 575,000,000.0 |  |  |
Remaining borrowing capacity |  |  |  |  |  | 245,100,000 |  | 245,100,000 |  |  |  |  |  |  |  |
Credit Agreement | Term Loan Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, credit facility |  |  |  | 200,000,000.0 | $ 125,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 75,000,000.0 | $ 125,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Quarterly payments, percentage of loan (percent) |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |  |
Periodic payment |  |  |  | $ 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Repayments of debt |  |  |  |  |  |  |  | 5,000,000.0 |  |  |  |  |  |  |  |
Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Elimination of unsecured team loan facility | $ 200,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 0 |  | 0 |  | $ 140,000,000.0 | $ 145,000,000 |  |  |  |  |
Senior Notes | Euro Senior Notes, Series A and B |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 212,000,000
Number of series | series |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2
Senior Notes | Euro Senior Notes, Series A due 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 136,417,000 |  | 136,417,000 |  |  | 129,808,000 |  |  |  |  |
Face amount of debt | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 117,000,000
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.14% | 1.14%
Senior Notes | Euro Senior Notes, Series B due 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 110,766,000 |  | 110,766,000 |  |  | 105,400,000 |  |  |  |  |
Face amount of debt | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 95,000,000
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.83% | 1.83%
Senior Notes | U.S. Senior Notes, Series A and B |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 125,000,000 |
Number of series | series |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2
Senior Notes | U.S. Senior Notes, Series A |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 25,000,000 |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.03% |  |
Senior Notes | U.S. Senior Notes, Series B |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000 |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.74% |  |
Senior Notes | US Senior Notes A and B Due 2025 and 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt |  |  |  |  |  |  |  |  |  |  |  | $ 175,000,000 |  |  |  |
Number of series | series |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Senior Notes | U.S. Senior Notes, Series A due 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 50,000,000 |  | 50,000,000 |  |  | 50,000,000 |  |  |  |  |
Face amount of debt |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  | 3.48% |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Notes | U.S. Senior Notes, Series B due 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | $ 125,000,000 |  | $ 125,000,000 |  |  | $ 125,000,000 |  |  |  |  |
Face amount of debt |  |  | $ 125,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  | 3.78% |  |  |  |  |  |  |  |  |  |  |  |  |

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