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Debt (Details) € in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) Rate	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($) Rate	Jun. 30, 2024 USD ($)	Jun. 30, 2025 EUR (€) Rate	Dec. 31, 2024 USD ($)
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 1,263,521		$ 1,263,521
Unamortized Debt Issuance Expense	(4,064)		(4,064)
Line of Credit Facility, Fair Value of Amount Outstanding	852,069		852,069
Total debt	2,183,922		2,183,922
Debt, Current	(60,187)		(60,187)
Long-term Debt	2,123,735		2,123,735
Line of Credit Facility, Remaining Borrowing Capacity	493,400		493,400
Cash and Cash Equivalent	61,825		61,825			$ 59,362
Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax	(44,600)	$ 5,100	(63,800)	$ 13,300
Cumulative (gain) loss in other other comprehensive income related to the change in a net investment hedge.	(21,500)		(21,500)
Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	697,794		697,794
Unamortized Debt Issuance Expense	(2,206)		(2,206)
Line of Credit Facility, Fair Value of Amount Outstanding	437,637		437,637
Total debt	1,144,674		1,144,674
Debt, Current	(1,306)		(1,306)
Long-term Debt	1,143,368		1,143,368
Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	565,727		565,727
Unamortized Debt Issuance Expense	(1,858)		(1,858)
Line of Credit Facility, Fair Value of Amount Outstanding	414,432		414,432
Total debt	1,039,248		1,039,248
Debt, Current	(58,881)		(58,881)
Long-term Debt	$ 980,367		$ 980,367
3.67% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	3.67%		3.67%		3.67%
Debt Instrument, Maturity Date			Dec. 17, 2022
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 50,000		$ 50,000
Debt Instrument, Term			10 years
4.10% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	4.10%		4.10%		4.10%
Debt Instrument, Maturity Date			Sep. 19, 2023
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 50,000		$ 50,000
Debt Instrument, Term			10 years
3.84% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	3.84%		3.84%		3.84%
Debt Instrument, Maturity Date			Sep. 19, 2024
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 125,000		$ 125,000
Debt Instrument, Term			10 years
4.24% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	4.24%		4.24%		4.24%
Debt Instrument, Maturity Date			Jun. 25, 2025
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 125,000		$ 125,000
Debt Instrument, Term			10 years
3.91% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	3.91%		3.91%		3.91%
Debt Instrument, Maturity Date			Jun. 25, 2029
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 75,000		$ 75,000
Debt Instrument, Term			10 years
3.91% Senior Notes [Member] | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	75,000		$ 75,000
3.91% Senior Notes [Member] | Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 0		$ 0
3.19% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	3.19%		3.19%		3.19%
Debt Instrument, Maturity Date			Jan. 24, 2035
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 50,000		$ 50,000
Debt Instrument, Term			15 years
3.19% Senior Notes [Member] | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	50,000		$ 50,000
3.19% Senior Notes [Member] | Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 0		$ 0
1.47% EURO Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	1.47%		1.47%		1.47%
Euro Notes - USD Amount	$ 146,285		$ 146,285
Debt Instrument, Maturity Date			Jun. 17, 2030
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes | €					€ 125,000
Debt Instrument, Term			15 years
1.47% EURO Senior Notes [Member] | Us Dollar Amounts Member
Debt Instrument [Line Items]
Euro Notes - USD Amount	0		$ 0
1.47% EURO Senior Notes [Member] | Other Principal Trading Currencies [Member]
Debt Instrument [Line Items]
Euro Notes - USD Amount	$ 146,285		$ 146,285
1.30% Euro-Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	1.30%		1.30%		1.30%
Euro Notes - USD Amount	$ 157,987		$ 157,987
Debt Instrument, Maturity Date			Nov. 06, 2034
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes | €					€ 135
Debt Instrument, Term			15 years
1.30% Euro-Senior Notes [Member] | Us Dollar Amounts Member
Debt Instrument [Line Items]
Euro Notes - USD Amount	0		$ 0
1.30% Euro-Senior Notes [Member] | Other Principal Trading Currencies [Member]
Debt Instrument [Line Items]
Euro Notes - USD Amount	$ 157,987		$ 157,987
Credit facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	0.975%		0.975%		0.975%
Debt Instrument, Maturity Date			Jun. 15, 2023
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 1,250,000		$ 1,250,000
Other local arrangements [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Other Borrowings	68,332		68,332
Other local arrangements [Member] | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Other Borrowings	9,243		9,243
Other local arrangements [Member] | Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Other Borrowings	$ 59,089		$ 59,089
Swiss Pension Loans [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	0.85%		0.85%		0.85%
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Loan from Swiss Pension Plan USD Amount	$ 39,600		$ 39,600
Swiss Pension Loans (local currency)	38,000		38,000
1.06% Euro-Senior Notes
Debt Instrument [Line Items]
Euro Notes - USD Amount	146,285		146,285
1.06% Euro-Senior Notes | Us Dollar Amounts Member
Debt Instrument [Line Items]
Euro Notes - USD Amount	0		0
1.06% Euro-Senior Notes | Other Principal Trading Currencies [Member]
Debt Instrument [Line Items]
Euro Notes - USD Amount	$ 146,285		$ 146,285
2.83% Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	2.83%		2.83%		2.83%
Debt Instrument, Maturity Date			Jul. 22, 2033
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 125,000		$ 125,000
Debt Instrument, Term			12 years
2.83% Senior Notes | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	125,000		$ 125,000
2.83% Senior Notes | Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 0		$ 0
2.81% Senior Note
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	2.81%		2.81%		2.81%
Debt Instrument, Maturity Date			Mar. 27, 2037
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 150,000		$ 150,000
Debt Instrument, Term			15 years
2.81% Senior Note | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	150,000		$ 150,000
2.81% Senior Note | Other Principal Trading Currencies [Member]
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 0		$ 0
2.91% Senior Note
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage | Rate	2.91%		2.91%		2.91%
Debt Instrument, Maturity Date			Sep. 01, 2037
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 150,000		$ 150,000
Debt Instrument, Term			15 years
2.91% Senior Note | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	150,000		$ 150,000
5.45% Senior Note
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	150,000		150,000
5.45% Senior Note | Us Dollar Amounts Member
Long-Term Debt, by Current and Noncurrent, and Short-Term Debt
Senior Notes	$ 150,000		$ 150,000

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