Borrowings - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total Outstanding Debt	$ 4,540,225	$ 4,414,903
Debt Instrument, Interest Rate, Effective Percentage	3.60%
Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
Contract Maturity	Jan. 26, 2049
Commercial Paper Notes [Member] \| Variable Rate Commercial Paper Program [Member]
Debt Instrument [Line Items]
Variable rate commercial paper program	$ 495,000	20,000
Debt Instrument, Interest Rate, Effective Percentage	5.70%
Contract Maturity	Jan. 07, 2024
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	$ 4,180,084	4,050,910
Debt Instrument, Interest Rate, Effective Percentage	3.60%
Unsecured Debt [Member] \| Fixed Rate Debt Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 3,700,000	4,050,000
Debt Instrument, Interest Rate, Effective Percentage	3.30%
Contract Maturity	Nov. 23, 2029
Unsecured Debt [Member] \| $1 billion unsecured revolving credit facility [Member] \| Fair Market Value Adjustment and Debt Issuance Cost [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ (14,916)	(19,090)
Secured Debt [Member]
Debt Instrument [Line Items]
Total Outstanding Debt	360,141	363,993
Debt issuance costs	$ (3,152)	(3,161)
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Secured Debt [Member] \| Fixed Rate Property Mortgages [Member]
Debt Instrument [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate	$ 363,293	$ 367,154
Debt Instrument, Interest Rate, Effective Percentage	4.40%
Contract Maturity	Dec. 31, 2049

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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