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MORTGAGE AND OTHER INDEBTEDNESS - Schedule of Term Loans and Revolving Lines of Credit (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) extension | Dec. 31, 2021 USD ($)
Debt Instrument [Line Items] |  |
Gross debt | $ 2,978,256 | $ 3,092,225
Unsecured credit facility revolving line of credit - variable rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 0 | $ 55,000
Interest rate | 5.56% | 1.20%
Number of extension options | extension | 2 |
Extension period | 6 months |
Extension fee percentage | 0.00075 |
Unsecured term loans |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 820,000 | $ 720,000
Unsecured term loans | Unsecured term loan due 2023 - fixed rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 0 | $ 200,000
Interest rate | 0.00% | 4.10%
Unsecured term loans | Unsecured term loan due 2023 - fixed rate | LIBOR |  |
Debt Instrument [Line Items] |  |
Gross debt |  | $ 200,000
Percentage bearing fixed interest |  | 2.85%
Variable interest rate |  | 1.25%
Unsecured term loans | Unsecured term loan due 2023 - fixed rate | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.20%
Unsecured term loans | Unsecured term loan due 2023 - fixed rate | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.85%
Unsecured term loans | Unsecured term loan due 2024 - fixed rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 120,000 | $ 120,000
Interest rate | 2.68% | 2.88%
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | LIBOR |  |
Debt Instrument [Line Items] |  |
Gross debt |  | $ 120,000
Percentage bearing fixed interest |  | 1.68%
Variable interest rate |  | 1.20%
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.20%
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.70%
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | SOFR |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 120,000 |
Percentage bearing fixed interest | 1.58% |
Variable interest rate | 1.10% |
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | SOFR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread | 0.80% |
Unsecured term loans | Unsecured term loan due 2024 - fixed rate | SOFR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread | 1.65% |
Unsecured term loans | Unsecured term loan due 2025 - fixed rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 250,000 | $ 250,000
Interest rate | 5.09% | 5.09%
Number of extension options | extension | 3 |
Extension period | 1 year |
Unsecured term loans | Unsecured term loan due 2025 - fixed rate | LIBOR |  |
Debt Instrument [Line Items] |  |
Gross debt |  | $ 250,000
Percentage bearing fixed interest |  | 5.09%
Unsecured term loans | Unsecured term loan due 2025 - fixed rate | SOFR |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 250,000 |
Percentage bearing fixed interest | 5.09% |
Unsecured term loans | Unsecured term loan due 2026 - fixed rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 150,000 | $ 150,000
Interest rate | 2.73% | 2.97%
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | LIBOR |  |
Debt Instrument [Line Items] |  |
Gross debt |  | $ 150,000
Percentage bearing fixed interest |  | 1.77%
Variable interest rate |  | 1.20%
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | LIBOR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.20%
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread |  | 1.70%
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | SOFR |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 150,000 |
Percentage bearing fixed interest | 1.68% |
Variable interest rate | 1.05% |
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | SOFR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread | 0.75% |
Unsecured term loans | Unsecured term loan due 2026 - fixed rate | SOFR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread | 1.60% |
Unsecured term loans | Unsecured term loan due 2029 - fixed rate |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 300,000 | $ 0
Interest rate | 4.05% | 0.00%
Unsecured term loans | Unsecured term loan due 2029 - fixed rate | SOFR |  |
Debt Instrument [Line Items] |  |
Gross debt | $ 300,000 |
Percentage bearing fixed interest | 2.70% |
Variable interest rate | 1.35% |
Unsecured term loans | Unsecured term loan due 2029 - fixed rate | SOFR | Minimum |  |
Debt Instrument [Line Items] |  |
Credit spread | 1.15% |
Unsecured term loans | Unsecured term loan due 2029 - fixed rate | SOFR | Maximum |  |
Debt Instrument [Line Items] |  |
Credit spread | 2.20% |

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