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v3.20.4

Notes Payable and Unsecured Credit Facilities (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Feb. 09, 2021
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Interest Rate Description |  |  | LIBOR plus 0.875% |  |  |
Debt instrument, interest rate, basis for effective rate |  |  | 91.5 |  |  |
Line of Credit Facility, Commitment Fee Amount |  |  | 0.15% |  |  |
Debt Instrument, Interest Rate Terms |  |  | LIBOR plus 0.95% |  |  |
Repayments of unsecured debt |  |  | $ 300,000 | $ 250,000 | $ 150,000 |
Debt maturing over the next twelve months |  |  | $ 43,160 |  |  |
Interest Rate Swap [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, interest rate swap stated |  |  | 2.00% |  |  |
Non-Recourse Mortgage Loan [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt maturing over the next twelve months |  |  | $ 31,600 |  |  |
Subsequent Event [Member] | Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt, Maturity Date |  |  |  |  |  | Mar. 23, 2025
Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, interest rate, basis for effective rate |  |  | LIBOR plus 0.875% |  |  |
Line of Credit [Member] | Term Loans [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, interest rate, basis for effective rate |  |  | LIBOR plus 0.95% |  |  |
Line of Credit [Member] | Subsequent Event [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 1,250,000 |  |  |  |  |
Long-term Debt, Maturity Date | Mar. 23, 2025 |  |  |  |  |
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread on variable rate |  |  | 0.875% |  |  |
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loans [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread on variable rate |  |  | 0.95% |  |  |
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Subsequent Event [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread on variable rate | 0.875% |  |  |  |  |
Unsecured Debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt, Maturity Date |  |  | Mar. 15, 2049 |  |  |
Accordion Feature [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | $ 1,250,000 |  |  |
Accordion Feature [Member] | Subsequent Event [Member] | Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  | $ 1,250,000
Swing Loan | Subsequent Event [Member] | Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  | 125,000
Letter of Credit | Subsequent Event [Member] | Amended and Restated Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  | $ 50,000
Term Loan [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt, Maturity Date |  |  | Jan. 05, 2022 |  |  |
Term Loan [Member] | Unsecured Debt [Member] | Subsequent Event [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of unsecured debt |  | $ 265,000 |  |  |  |

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