Debt - Outstanding Amount of Credit Facilities (Details)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 AUD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)
Line of Credit Facility [Line Items]
Total unsecured debt	$ 4,314,480,000			$ 3,934,374,000
Unamortized discount and debt issuance cost	(30,135,000)			(28,146,000)
Total debt	4,284,345,000			3,906,228,000
Less debt due within one year	541,705,000			355,298,000
Long-term debt, excluding current portion	$ 3,742,640,000			3,550,930,000
Series A Senior Unsecured Notes, Due 2024
Line of Credit Facility [Line Items]
Debt instrument, face amount		$ 155,000,000
Debt instrument, stated percentage	3.10%	3.10%	3.10%
Long-term debt	$ 0			105,571,000
Series J Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 225,000,000
Debt instrument, stated percentage	1.40%	1.40%	1.40%
Long-term debt	$ 0			248,355,000
Senior Unsecured Notes, Due February 1, 2025
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 500,000,000
Debt instrument, stated percentage	1.75%	1.75%	1.75%
Long-term debt	$ 500,000,000			500,000,000
Series B Senior Unsecured Notes, Due 2026
Line of Credit Facility [Line Items]
Debt instrument, face amount		$ 155,000,000
Debt instrument, stated percentage	3.43%	3.43%	3.43%
Long-term debt	$ 96,426,000			105,571,000
Series H Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Debt instrument, stated percentage	3.24%	3.24%	3.24%
Long-term debt	$ 250,000,000			250,000,000
Series K Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 250,000,000
Debt instrument, stated percentage	1.81%	1.81%	1.81%
Long-term debt	$ 260,150,000			275,950,000
Series I Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 120,000,000
Debt instrument, stated percentage	3.70%	3.70%	3.70%
Long-term debt	$ 120,000,000			120,000,000
Senior Unsecured Notes, Due November 1, 2028
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 425,000,000
Debt instrument, stated percentage	6.50%	6.50%	6.50%
Long-term debt	$ 425,000,000			425,000,000
Series A Senior Unsecured Notes, Due 2029
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 50,000,000
Debt instrument, stated percentage	1.55%	1.55%	1.55%
Long-term debt	$ 52,030,000			55,190,000
Senior Unsecured Notes Due August 15, 2029
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 750,000,000
Debt instrument, stated percentage	4.95%	4.95%	4.95%
Long-term debt	$ 750,000,000			0
Series L Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 125,000,000
Debt instrument, stated percentage	2.02%	2.02%	2.02%
Long-term debt	$ 130,075,000			137,975,000
Senior Unsecured Notes, Due November 1, 2030
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 500,000,000
Debt instrument, stated percentage	1.88%	1.88%	1.88%
Long-term debt	$ 500,000,000			500,000,000
Series B Senior Unsecured Notes, Due 2031
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 100,000,000
Debt instrument, stated percentage	1.74%	1.74%	1.74%
Long-term debt	$ 104,060,000			110,380,000
Senior Unsecured Notes, Due February 1, 2032
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 500,000,000
Debt instrument, stated percentage	2.75%	2.75%	2.75%
Long-term debt	$ 500,000,000			500,000,000
Series M Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 100,000,000
Debt instrument, stated percentage	2.32%	2.32%	2.32%
Long-term debt	$ 104,060,000			110,380,000
Senior Unsecured Notes, Due November 1, 2033
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 375,000,000
Debt instrument, stated percentage	6.88%	6.88%	6.88%
Long-term debt	$ 375,000,000			375,000,000
Series C Senior Unsecured Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount | €			€ 100,000,000
Debt instrument, stated percentage	1.95%	1.95%	1.95%
Long-term debt	$ 104,060,000			110,380,000
Other Unsecured Debt
Line of Credit Facility [Line Items]
Other unsecured debt	$ 43,619,000			$ 4,622,000