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v3.19.3

Debt - Unsecured Term Loan (Details) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 25, 2019 USD ($) | Jan. 31, 2019 | Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) loan | Sep. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Number of loans | loan |  |  |  |  | 2 |  |
Debt repaid |  |  |  |  | $ 10,374,000 | $ 9,947,000 |
Loss on early extinguishment of debt |  |  | $ 2,373,000 | $ 0 | $ 2,373,000 | 0 |
Line Of Credit Facility Covenant Actual Results |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum leverage ratio (as a percent) |  |  | 0.314 |  | 0.314 |  |
Unsecured Term Loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, term (in years) |  |  |  |  | 5 years |  |
Accordion feature, higher borrowing capacity | $ 1,200,000,000 |  |  |  |  |  |
Unsecured Term Loan | Less than 30% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.35% |  |
Unsecured Term Loan | Less than 30% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.30 |  |
Unsecured Term Loan | Greater than or equal to 30% but less than 35% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.40% |  |
Unsecured Term Loan | Greater than or equal to 30% but less than 35% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.30 |  |
Unsecured Term Loan | Greater than or equal to 30% but less than 35% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.35 |  |
Unsecured Term Loan | Greater than or equal to 35% but less than 40% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.45% |  |
Unsecured Term Loan | Greater than or equal to 35% but less than 40% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.35 |  |
Unsecured Term Loan | Greater than or equal to 35% but less than 40% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.40 |  |
Unsecured Term Loan | Greater than or equal to 40% but less than 45% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.50% |  |
Unsecured Term Loan | Greater than or equal to 40% but less than 45% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.40 |  |
Unsecured Term Loan | Greater than or equal to 40% but less than 45% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.45 |  |
Unsecured Term Loan | Greater than or equal to 45% but less than 50% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.65% |  |
Unsecured Term Loan | Greater than or equal to 45% but less than 50% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.45 |  |
Unsecured Term Loan | Greater than or equal to 45% but less than 50% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.50 |  |
Unsecured Term Loan | Greater than or equal to 50% but less than 55% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.85% |  |
Unsecured Term Loan | Greater than or equal to 50% but less than 55% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.5 |  |
Unsecured Term Loan | Greater than or equal to 50% but less than 55% | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.55 |  |
Unsecured Term Loan | Greater than or equal to 55% |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 2.00% |  |
Unsecured Term Loan | Greater than or equal to 55% | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Ratio of net indebtedness to EBITDA |  |  |  |  | 0.55 |  |
Unsecured Term Loan | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.40% |  |
Interest incurred on the facility |  |  | $ 3,500,000 | $ 2,600,000 | $ 10,400,000 | $ 7,600,000 |
Unsecured Term Loan | Applicable Margin |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, term (in years) | 5 years |  |  |  |  |  |
Principal balance | $ 350,000,000 |  |  |  |  |  |
Unsecured Term Loan | Unsecured Term Loan Due May 2021 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal balance |  |  | 0 |  | $ 0 |  | $ 100,000,000
Debt repaid | 100,000,000 |  |  |  |  |  |
Unsecured Term Loan | Unsecured Term Loan Due May 2021 | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.45% |  |
Unsecured Term Loan | Unsecured Term Loan Due April 2022 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal balance |  |  | 0 |  | $ 0 |  | 200,000,000
Debt repaid | 200,000,000 |  |  |  |  |  |
Unsecured Term Loan | Unsecured Term Loan Due April 2022 | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.45% |  |
Unsecured Term Loan | Unsecured Term Loan, $175 million |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal balance | $ 175,000,000 |  |  |  |  |  |
Unsecured Term Loan | $50 million term loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Principal balance |  |  | $ 50,000,000 |  | $ 50,000,000 |  | $ 50,000,000
Unsecured Term Loan | $50 million term loan | LIBOR |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 1.40% |  |
Interest Rate Swap | Unsecured Term Loan | Unsecured Term Loan, $175 million | LIBOR Swap Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate | 1.70% |  |  |  |  |  |
Interest Rate Swap | Unsecured Term Loan | $50 million term loan | LIBOR Swap Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  | 2.41% |  |  |  |  |

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