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Secured Debt, Encumbers Real Estate Owned, Percent.

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Secured debt including debt on real estate held for sale.

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Secured debt.

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Secured Debt, Unencumbered Real Estate Owned, Percent.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt premium.

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Average fixed interest rate related to the group of interest rate derivatives.

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Nominal or face amount used to calculate payments on the derivative liability.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

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SECURED AND UNSECURED DEBT, NET - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Secured Debt
Percentage of secured debt which encumbers real estate owned based upon book value	13.00%
Percentage of secured debt of real estate owned which is unencumbered	87.00%
Long-term Debt	$ 5,762,328		$ 5,798,709
Outstanding balances	5,772,722
3.00% Medium-Term Notes due August 2031
Secured Debt
Outstanding balances	600,000
Interest rate risk	$ 250,000
All-in weighted average interest rate	3.01%
Unsecured Debt
Secured Debt
Long-term Debt	$ 4,525,549		4,520,996
Outstanding balances	4,532,703
Secured Debt
Secured Debt
Long-term Debt	1,236,779		1,277,713
Outstanding balances	$ 1,240,019
Fixed Rate Debt \| Mortgages Notes Payable \| Minimum
Secured Debt
Notes payable maximum interest rates range	2.62%
Fixed Rate Debt \| Mortgages Notes Payable \| Maximum
Secured Debt
Notes payable maximum interest rates range	4.39%
Fixed Rate Debt \| Unsecured Debt \| 2.95% Medium-Term Note due September 2026
Secured Debt
Outstanding balances	$ 300,000		$ 300,000
Stated interest rate	2.95%		2.95%
Portion of medium term note subject to interest rate swaps	$ 100,000
All-in weighted average interest rate	2.89%
Fixed Rate Debt \| Unsecured Debt \| 3.50 Medium-Term Note due July 2027
Secured Debt
Long-term Debt	$ 299,771		$ 299,753
Stated interest rate	3.50%		3.50%
Portion of medium term note subject to interest rate swaps	$ 200,000
All-in weighted average interest rate	4.03%
Fixed Rate Debt \| Unsecured Debt \| 4.40% Medium-Term Notes due January 2029
Secured Debt
Principal outstanding	$ 300,000
Long-term Debt	$ 299,997		$ 299,997
Stated interest rate	4.40%		4.40%
Portion of medium term note subject to interest rate swaps	$ 150,000
All-in weighted average interest rate	4.27%
Fixed Rate Debt \| Unsecured Debt \| 3.20% Medium-Term Notes due January 2030
Secured Debt
Long-term Debt	$ 607,951		$ 608,294
Stated interest rate	3.20%		3.20%
All-in weighted average interest rate	3.32%
Unamortized net premium	$ 7,951		$ 8,294
Fixed Rate Debt \| Unsecured Debt \| 3.00% Medium-Term Notes due August 2031
Secured Debt
Long-term Debt	$ 608,810		$ 609,109
Stated interest rate	3.00%		3.00%
Unamortized net premium	$ 8,810		$ 9,109
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium Term Note Due August 2032
Secured Debt
Long-term Debt	$ 399,706		399,697
Stated interest rate	2.10%
Fixed Rate Debt \| Unsecured Debt \| 2.10% Medium-Term Note due June 2033
Secured Debt
Long-term Debt	$ 299,084		$ 299,059
Stated interest rate	2.10%		2.10%
Fixed Rate Debt \| Unsecured Debt \| 3.10% senior unsecured notes due 2034
Secured Debt
All-in weighted average interest rate	3.13%
Fixed Rate Debt \| Unsecured Debt \| 1.90% Medium-Term Notes due March 2033
Secured Debt
Long-term Debt	$ 348,921		$ 348,890
Stated interest rate	1.90%		1.90%
Fixed Rate Debt \| Secured Debt
Secured Debt
Long-term Debt	$ 1,209,823		$ 1,210,742
Outstanding balances	1,213,019
Fixed Rate Debt \| Secured Debt \| Mortgages Notes Payable
Secured Debt
Outstanding balances	1,213,019		1,213,751
Fixed Rate Debt \| Debt Assumed As Part of Acquisition \| Mortgages Notes Payable
Secured Debt
Amortization of debt discount (Premium)	400	$ 1,100
Unamortized net premium	1,100		1,500
Variable Rate Debt \| Mortgages Notes Payable
Secured Debt
Repayments of outstanding borrowing	$ 40,000
Stated interest rate	8.31%
Variable Rate Debt \| Secured Debt
Secured Debt
Long-term Debt	$ 26,956		66,971
Outstanding balances	27,000
Variable Rate Debt \| Secured Debt \| Mortgages Notes Payable
Secured Debt
Outstanding balances			40,017
Variable Rate Debt \| Secured Debt \| Tax-exempt notes payable
Secured Debt
Outstanding balances	27,000		$ 27,000
Variable Rate Debt \| Tax-exempt notes payable \| Mortgages Notes Payable
Secured Debt
Principal outstanding	$ 27,000
Variable Rate Debt \| Tax-exempt secured notes payable \| Mortgages Notes Payable
Secured Debt
Notes payable maximum interest rates range	4.05%