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Mortgage and Other Indebtedness - Consolidated Indebtedness by Type of Interest Rate (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |
Debt outstanding | $ 1,288,994 | $ 1,170,794
Ratio (as percent) | 100.00% |
Weighted Average Interest Rate (as percent) | 3.74% |
Weighted average maturity (in years) | 4 years 3 months 18 days |
Net Debt Premiums and Issuance Costs, Net | $ (9,986) |
Fixed Rate Debt |  |
Debt Instrument [Line Items] |  |
Debt outstanding | $ 1,114,787 |
Ratio (as percent) | 86.00% |
Weighted Average Interest Rate (as percent) | 3.78% |
Weighted average maturity (in years) | 4 years 3 months 18 days |
Fixed Rate Debt | Variable rate debt |  |
Debt Instrument [Line Items] |  |
Debt outstanding | $ 250,000 |
Weighted average maturity (in years) | 4 years 1 month 6 days |
Variable Rate Debt |  |
Debt Instrument [Line Items] |  |
Debt outstanding | $ 184,193 |
Ratio (as percent) | 14.00% |
Weighted Average Interest Rate (as percent) | 3.48% |
Weighted average maturity (in years) | 4 years 2 months 12 days |
Variable Rate Debt | Fixed rate debt |  |
Debt Instrument [Line Items] |  |
Debt outstanding | $ 155,000 |
Weighted average maturity (in years) | 3 years 10 months 24 days |

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