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v3.8.0.1

Notes Payable (Summary Of Indebtedness) (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Unsecured notes payable |  | $ 1,338,117 | $ 1,583,236
Secured notes payable | [1] | 866,134 | 897,352
Total notes payable |  | 2,204,200 | 2,480,600
Senior Unsecured Notes [Member] |  |  |
Unsecured notes payable | [1] | $ 1,338,100 | $ 1,583,200
5.83% Notes Due 2017 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | May 15, 2017 |
Notes payable, effective interest rate |  | 5.83% | 5.83%
Unsecured notes payable |  | $ 0 | $ 246,600
4.78% Notes Due 2021 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | Jun. 15, 2021 |
Notes payable, effective interest rate |  | 4.78% | 4.78%
Unsecured notes payable |  | $ 248,600 | $ 248,400
3.15% Notes Due 2022 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | Dec. 15, 2022 |
Notes payable, effective interest rate |  | 3.15% | 3.15%
Unsecured notes payable |  | $ 346,500 | $ 346,000
5.07% Notes Due 2023 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | Jun. 15, 2023 |
Notes payable, effective interest rate |  | 5.07% | 5.07%
Unsecured notes payable |  | $ 247,500 | $ 247,200
4.36% Notes Due 2024 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | Jan. 15, 2024 |
Notes payable, effective interest rate |  | 4.36% | 4.36%
Unsecured notes payable |  | $ 248,400 | $ 248,200
3.68% Notes Due 2024 [Member] | Senior Unsecured Notes [Member] |  |  |
Debt Instrument, Maturity Date |  | Sep. 15, 2024 |
Notes payable, effective interest rate |  | 3.68% | 3.68%
Unsecured notes payable |  | $ 247,100 | $ 246,800
Secured Notes 1.87% to 5.77% Conventional Mortgage Notes Due 2018 to 2045 [Member] | Secured Debt [Member] |  |  |
Secured notes payable |  | 866,100 | 866,700
Tax-exempt Mortgage Note [Member] | Secured Debt [Member] |  |  |
Secured notes payable |  | 0 | 30,700
Secured Notes 1.87% Floating Rate [Member] | Secured Debt [Member] |  |  |
Secured notes payable |  | $ 175,000 | $ 175,000
Minimum [Member] | Secured Notes 1.87% to 5.77% Conventional Mortgage Notes Due 2018 to 2045 [Member] | Secured Debt [Member] |  |  |
Debt Instrument, Maturity Date |  | Oct. 01, 2018 |
Notes payable, effective interest rate |  | 1.87% |
Minimum [Member] | Secured Notes 1.87% Floating Rate [Member] | Secured Debt [Member] |  |  |
Notes payable, effective interest rate |  | 1.87% |
Maximum [Member] | Secured Notes 1.87% to 5.77% Conventional Mortgage Notes Due 2018 to 2045 [Member] | Secured Debt [Member] |  |  |
Debt Instrument, Maturity Date |  | Sep. 01, 2045 |
Notes payable, effective interest rate |  | 5.77% |
Unsecured Credit Facility [Member] | Commercial Banks [Member] |  |  |
Unsecured notes payable |  | $ 0 |
Short-term Debt [Member] |  |  |
Debt Instrument, Maturity Date |  | May 14, 2018 |
Other Short-term Borrowings |  | $ 0 |
[1] | Unamortized debt discounts and debt issuance costs of $13.0 million and $15.7 million are included in senior unsecured and secured notes payable as of September 30, 2017 and December 31, 2016, respectively.

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