v3.25.2
Notes Payable (Summary Of Indebtedness) (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Unsecured notes payable $ 3,495,487 $ 3,155,233
Weighted Average Interest Rate [1],[2] 4.10%  
Secured notes payable $ 330,476 330,358
Total notes payable (3) [3] 3,826,000 3,485,600
Commercial Banks [Member]    
Unsecured notes payable $ 555,500 217,900
Commercial Banks [Member] | 5.50% Term Loan, due 2026    
Debt Instrument, Maturity Date Sep. 30, 2026  
Notes payable, effective interest rate 5.50%  
Unsecured notes payable $ 39,900 39,900
Commercial Banks [Member] | 5.14% Unsecured revolving credit facility    
Notes payable, effective interest rate 5.14%  
Unsecured notes payable $ 0 178,000
Commercial Banks [Member] | 4.55% Commercial Paper Program    
Unsecured notes payable $ 515,600 0
Weighted Average Interest Rate 4.55%  
Senior Unsecured Notes [Member]    
Unsecured notes payable $ 2,940,000 2,937,300
Senior Unsecured Notes [Member] | 5.65% Notes, due 2026    
Debt Instrument, Maturity Date Nov. 03, 2026  
Notes payable, effective interest rate 5.63%  
Unsecured notes payable [4] $ 504,800 503,300
Senior Unsecured Notes [Member] | 3.74% Notes Due 2028    
Debt Instrument, Maturity Date Oct. 15, 2028  
Notes payable, effective interest rate 3.74%  
Unsecured notes payable $ 399,200 399,100
Senior Unsecured Notes [Member] | 3.67% Notes Due 2029    
Debt Instrument, Maturity Date Jul. 01, 2029  
Notes payable, effective interest rate 3.67%  
Unsecured notes payable [5] $ 597,100 596,800
Senior Unsecured Notes [Member] | 2.91% Notes, due 2030    
Debt Instrument, Maturity Date May 15, 2030  
Notes payable, effective interest rate 2.91%  
Unsecured notes payable $ 746,400 746,000
Senior Unsecured Notes [Member] | 5.06% Notes Due 2034    
Debt Instrument, Maturity Date Jan. 15, 2034  
Notes payable, effective interest rate 5.06%  
Unsecured notes payable $ 395,500 395,200
Senior Unsecured Notes [Member] | 3.41% Notes Due 2049    
Debt Instrument, Maturity Date Nov. 01, 2049  
Notes payable, effective interest rate 3.41%  
Unsecured notes payable $ 297,000 296,900
Unsecured Debt    
Unsecured notes payable 3,495,500 3,155,200
Secured Debt    
Secured notes payable 330,500 330,400
Secured Debt | 3.78% - 4.04% Conventional Mortgage Notes, due 2026 - 2028    
Secured notes payable $ 291,500 291,400
Secured Debt | 3.87% note, due 2028    
Debt Instrument, Maturity Date Jan. 01, 2028  
Notes payable, effective interest rate 3.87%  
Secured notes payable $ 39,000 $ 39,000
Minimum [Member] | Secured Debt | 3.78% - 4.04% Conventional Mortgage Notes, due 2026 - 2028    
Debt Instrument, Maturity Date Oct. 01, 2026  
Notes payable, effective interest rate 3.78%  
Maximum [Member] | Secured Debt | 3.78% - 4.04% Conventional Mortgage Notes, due 2026 - 2028    
Debt Instrument, Maturity Date Apr. 01, 2028  
Notes payable, effective interest rate 4.04%  
[1] Includes all available extension options.
[2] Includes the effects of the applicable settled derivatives.
[3] Balances are decreased by unamortized debt discounts, debt issuance costs, and fair market value adjustments, net of $10.6 million and $13.3 million as of June 30, 2025 and December 31, 2024, respectively.
[4] Balances are increased by $6.3 million and $5.3 million for fair value adjustments due to changes in benchmark interest rates related to these notes as of June 30, 2025 and December 31, 2024, respectively. See Note 7. "Derivative Financial Instruments and Hedging Activities," for further discussion.
[5] The 2029 Notes have an effective annual interest rate of approximately 3.84% through June 2026, which includes the effect of a settled forward interest rate swap, and approximately 3.28% thereafter, for an all-in average effective rate of approximately 3.67%.