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Debt - Senior Notes (Details) |  |  |  |  |  |  |  |  | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 12, 2020 USD ($) | May 14, 2020 USD ($) | Apr. 07, 2020 USD ($) | Sep. 04, 2019 USD ($) | May 18, 2018 USD ($) | Sep. 11, 2017 USD ($) | Jun. 09, 2015 USD ($) | Jan. 31, 2013 USD ($) | Jun. 27, 2020 USD ($) | Jun. 29, 2019 USD ($) | Jun. 12, 2020 EUR (€) | Sep. 04, 2019 EUR (€) | May 18, 2018 EUR (€) | Sep. 11, 2017 EUR (€) | Jun. 09, 2015 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of financing costs |  |  |  |  |  |  |  |  | $ 11,896,000 | $ 0 |  |  |  |  |
Delayed Draw Term Loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of financing costs |  |  | $ 1,088,000 |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity under credit facility |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |
1.750% Senior Notes due June 12, 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts | € |  |  |  |  |  |  |  |  |  |  | € 500,000,000 |  |  |  |
Interest rate percentage |  |  |  |  |  |  |  |  | 1.75% |  | 1.75% |  |  |  |
Payment of financing costs | $ 4,855,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
3.625% Senior Notes, payable May 15, 2030; interest payable semi-annually |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate percentage |  | 3.625% |  |  |  |  |  |  | 3.625% |  |  |  |  |  |
Payment of financing costs |  | $ 5,550,000 |  |  |  |  |  |  |  |  |  |  |  |  |
3.85% Senior Notes due February 1, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |  |
Interest rate percentage |  |  |  |  |  |  |  | 3.85% | 3.85% |  |  |  |  |  |
Payment of financing costs |  |  |  |  |  |  |  | $ 6,000,000 |  |  |  |  |  |  |
2.00% Senior Notes due January 14, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 500,000,000
Interest rate percentage |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |  | 2.00%
Payment of financing costs |  |  |  |  |  |  | $ 4,218,000 |  |  |  |  |  |  |  |
Floating Rate Notes due May 18, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts | € |  |  |  |  |  |  |  |  |  |  |  |  | € 300,000,000 |  |
Payment of financing costs |  |  |  |  | $ 890,000 |  |  |  |  |  |  |  |  |  |
Floating rate notes due September 04, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts | € |  |  |  |  |  |  |  |  |  |  |  | € 300,000,000 |  |  |
Payment of financing costs |  |  |  | $ 754,000 |  |  |  |  |  |  |  |  |  |  |
Issuance premium received | € |  |  |  |  |  |  |  |  |  |  |  | € 744,000 |  |  |
Floating Rate Notes Due September Eleventh Twenty Nineteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debts | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 300,000,000 |
Payment of financing costs |  |  |  |  |  | $ 911,000 |  |  |  |  |  |  |  |  |
Euro Interbank Offered Rate (EURIBOR) | Floating Rate Notes due May 18, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on debt instrument |  |  |  |  | 0.30% |  |  |  |  |  |  |  |  |  |
Euro Interbank Offered Rate (EURIBOR) | Floating rate notes due September 04, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on debt instrument |  |  |  | 0.20% |  |  |  |  |  |  |  |  |  |  |
Euro Interbank Offered Rate (EURIBOR) | Floating Rate Notes Due September Eleventh Twenty Nineteen [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on debt instrument |  |  |  |  |  | 0.30% |  |  |  |  |  |  |  |  |

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