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v3.21.1

Notes Payable (Details) | 1 Months Ended | 3 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) instrument | Jun. 30, 2019 instrument | Sep. 30, 2018 USD ($) | Jun. 30, 2018 instrument | Dec. 31, 2017 instrument | Sep. 30, 2017 USD ($) | Dec. 31, 2016 USD ($) | Oct. 31, 2015 USD ($) instrument | May 31, 2014 USD ($) instrument
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss deferred in other comprehensive income |  | $ 0 | $ 7,617,000 |  |  |  |  |  |  |  |
Proceeds from notes payable |  | 441,594,000 | 692,646,000 |  |  |  |  |  |  |  |
Payment of debt issuance costs |  | 5,145,000 | 6,397,000 |  |  |  |  |  |  |  |
Payment of make-whole premium |  | 21,328,000 | $ 16,679,000 |  |  |  |  |  |  |  |
Forward Swap |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of interest rate derivatives terminated | instrument |  |  | 3 | 2 |  | 2 | 2 |  |  | 4 | 3
Aggregate notional amount |  |  | $ 200,000,000 |  | $ 250,000,000 |  |  | $ 250,000,000 | $ 180,000,000 | $ 300,000,000 | $ 225,000,000
2030 Notes | Loans Payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount | $ 450,000,000 | $ 450,000,000 |  |  |  |  |  |  |  |  |
Stated interest rate | 3.50% | 3.50% |  |  |  |  |  |  |  |  |
Aggregate purchase price | $ 441,594,000 | $ 441,594,000 |  |  |  |  |  |  |  |  |
Discount | $ 8,406,000 | $ 8,406,000 |  |  |  |  |  |  |  |  |
Effective Rate | 3.602% | 3.602% |  |  |  |  |  |  |  |  |
Proceeds from notes payable | $ 436,417,000 |  |  |  |  |  |  |  |  |  |
Payment of debt issuance costs | $ 5,177,000 |  |  |  |  |  |  |  |  |  |
2022 Notes | Loans Payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate | 3.30% | 3.30% |  |  |  |  |  |  |  |  |
Notes payable redeemed | $ 350,000,000 |  |  |  |  |  |  |  |  |  |
Redemption price, percent of principal amount | 100.00% |  |  |  |  |  |  |  |  |  |
Payment of make-whole premium | $ 21,328,000 |  |  |  |  |  |  |  |  |  |

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