Senior Unsecured Notes and Secured Debt - Outstanding Exchangeable (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Unsecured Debt [Line Items]
Principal	$ 17,143,767,000
Less: unamortized debt issuance costs	93,534,000
Total carrying value of debt	16,852,362,000
Senior unsecured notes
Unsecured Debt [Line Items]
Principal	14,513,786,000	$ 13,326,465,000	$ 13,443,735,000	$ 13,699,619,000
Less: unamortized debt issuance costs	79,442,000
Total carrying value of debt	14,365,008,000
2028 Exchangeable Notes | Senior unsecured notes
Unsecured Debt [Line Items]
Principal	1,035,000,000	1,035,000,000
Less: unamortized debt issuance costs	12,119,000	15,622,000
Total carrying value of debt	1,022,881,000	1,019,378,000
2029 Exchangeable Notes | Senior unsecured notes
Unsecured Debt [Line Items]
Principal	1,035,000,000	1,035,000,000
Less: unamortized debt issuance costs	15,109,000	18,422,000
Total carrying value of debt	$ 1,019,891,000	$ 1,016,578,000