Credit Facilities and Commercial Paper Programs - RI Credit Facilities (Details) $ in Thousands, € in Millions, £ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) tranche currency extension_option	Mar. 31, 2025	Mar. 31, 2026 GBP (£) tranche extension_option	Mar. 31, 2026 EUR (€) tranche extension_option	Dec. 31, 2025 USD ($)	Dec. 31, 2025 GBP (£)	Dec. 31, 2025 EUR (€)
Credit facility
Revolving credit facilities origination costs, net	$ 22,400				$ 25,246
Line of Credit | Revolving credit facility | RI Credit Facilities
Credit facility
Maximum borrowing capacity	$ 4,000,000
Number of extensions | extension_option	2		2	2
Term of extension option	6 months
Aggregate amount the facilities can be increased	$ 5,000,000
Commitment fee (as a percent)	0.125%
Current borrowing capacity	$ 2,200,000				2,700,000
Revolving credit facilities and commercial paper	$ 1,800,000		£ 606.5	€ 841.0	1,300,000	£ 597.0	€ 444.0
Weighted average borrowing rate during the period (as a percent)	3.30%	4.50%
Weighted average interest rate (as a percent)	3.50%		3.50%	3.50%
Revolving credit facilities origination costs, net	$ 16,700				$ 19,000
Line of Credit | Revolving credit facility | RI Credit Facilities | SOFR
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Line of Credit | Revolving credit facility | RI Credit Facilities | SONIA
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Line of Credit | Revolving credit facility | RI Credit Facilities | EURIBOR
Credit facility
Basis spread on variable rate (as a percent)	0.725%
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2027
Credit facility
Maximum borrowing capacity	$ 2,000,000
Number of tranches | tranche	2		2	2
Debt term	2 years
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2027 | Tranche One
Credit facility
Maximum borrowing capacity	$ 1,500,000
Number of currencies allowable per facility | currency	4
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2027 | Tranche Two
Credit facility
Maximum borrowing capacity	$ 500,000
Number of currencies allowable per facility | currency	15
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2029
Credit facility
Maximum borrowing capacity	$ 2,000,000
Number of tranches | tranche	2		2	2
Debt term	4 years
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2029 | Tranche One
Credit facility
Maximum borrowing capacity	$ 1,500,000
Number of currencies allowable per facility | currency	4
Line of Credit | Revolving credit facility | Multicurrency Credit Facility Maturing April 2029 | Tranche Two
Credit facility
Maximum borrowing capacity	$ 500,000
Number of currencies allowable per facility | currency	15