Borrowings - Summary (Details) € in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Total long-term debt	$ 3,018,714		$ 3,108,829
Unamortized discount	15,100		17,600
Deferred debt issuance cost	12,500		14,400
3.15% 10-year notes due November 15, 2025
Debt Instrument [Line Items]
Principal	400,000
Total long-term debt	$ 397,389		396,716
Debt instrument, stated interest rate	3.15%	3.15%
Term	10 years
1.25% 10-year notes due November 9, 2026 (euro-denominated)
Debt Instrument [Line Items]
Principal \| €		€ 600,000
Total long-term debt	$ 674,217		724,310
Debt instrument, stated interest rate	1.25%	1.25%
Term	10 years
0.750% 8-year notes due November 4, 2027 (euro denominated)
Debt Instrument [Line Items]
Principal \| €		€ 500,000
Total long-term debt	$ 561,293		603,107
Debt instrument, stated interest rate	0.75%	0.75%
Term	8 years
6.65% 30-year debentures due June 1, 2028
Debt Instrument [Line Items]
Principal	$ 200,000
Total long-term debt	$ 199,356		199,255
Debt instrument, stated interest rate	6.65%	6.65%
Term	30 years
2.950% 10-year notes due November 4, 2029
Debt Instrument [Line Items]
Principal			300,000
Total long-term debt	$ 297,029		296,650
Debt instrument, stated interest rate	2.95%	2.95%
Term	10 years
5.375% 30-year debentures due October 15, 2035
Debt Instrument [Line Items]
Principal	$ 300,000
Total long-term debt	$ 296,559		296,309
Debt instrument, stated interest rate	5.375%	5.375%
Term	30 years
6.60% 30-year notes due March 15, 2038
Debt Instrument [Line Items]
Principal	$ 250,000
Total long-term debt	$ 248,166		248,053
Debt instrument, stated interest rate	6.60%	6.60%
Term	30 years
5.375% 30-year notes due March 1, 2041
Debt Instrument [Line Items]
Principal	$ 350,000
Total long-term debt	$ 344,705		$ 344,429
Debt instrument, stated interest rate	5.375%	5.375%
Term	30 years

Face (par) amount of debt instrument at time of issuance.

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