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REVOLVING CREDIT FACILITY (Details) - USD ($) $ in Thousands |  |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 04, 2017 | Oct. 26, 2015 | Dec. 17, 2013 | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 19, 2019
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Loan procurement costs, net of amortization |  |  |  | $ 2,836 | $ 3,275 |
Less: Loan procurement costs, net |  |  |  | $ (2,836) | (3,275) |
Revolver |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  | 1.20% |  |
Remaining borrowing capacity |  |  |  | $ 724,800 |  |
Outstanding letter of credit |  |  |  | $ 600 |  |
Credit Facility | Minimum |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Fixed charge coverage ratio |  |  |  | 1.5 |  |
Credit Facility | Maximum |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Total indebtedness to total asset value ratio (as a percent) |  |  |  | 60.00% |  |
Credit Facility | Revolver |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 750,000
Interest rate, basis spread (as a percent) |  |  |  | 1.10% |  |
Facility fee (as a percent) |  |  |  | 0.15% |  |
Senior notes 4.375% due 2023 |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Debt amount | $ 50,000 |  | $ 250,000 | $ 300,000 | 300,000 |
Proceeds from senior notes | $ 50,000 |  | $ 250,000 |  |  |
Interest rate (as a percent) | 4.375% |  | 4.375% | 4.375% |  |
Effective interest rate (as a percent) | 3.495% |  | 4.501% | 4.33% |  |
Effective weighted average interest rate (as a percent) |  |  |  | 4.33% |  |
Senior notes 4.000% due 2025 |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Debt amount | $ 50,000 | $ 250,000 |  | $ 300,000 | 300,000 |
Proceeds from senior notes | $ 50,000 | $ 250,000 |  |  |  |
Interest rate (as a percent) | 4.00% | 4.00% |  | 4.00% |  |
Effective interest rate (as a percent) | 3.811% | 4.032% |  | 3.99% |  |
Effective weighted average interest rate (as a percent) |  |  |  | 3.994% |  |
Senior Notes 4.375 % Due 2029 |  |  |  |  |  |
SECURED CREDIT FACILITY, UNSECURED CREDIT FACILITY AND SECURED TERM LOANS |  |  |  |  |  |
Debt amount |  |  |  | $ 350,000 | $ 350,000 |
Interest rate (as a percent) |  |  |  | 4.375% |  |
Effective interest rate (as a percent) |  |  |  | 4.46% |  |

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