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v3.19.2

Notes Payable (Narrative) (Details) $ in Thousands |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 29, 2017 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Mar. 08, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |
Interest rate |  |  |  | 4.40%
Debt issuance cost |  |  |  | $ 3,400
Debt instrument, discount percent |  |  |  | 99.847%
Effective interest rate |  |  |  | 4.45%
Debt to total capital ratio |  | 0.175 |  |
Unamortized debt issuance cost |  | $ 100 |  |
Unsecured Notes Two [Member] | Revolving Credit Facility [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Loan maximum borrowing capacity | $ 50,000 |  |  |
Revolving credit facility term | 5 years |  |  |
Unsecured Notes Two [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt to total capital ratio | 0.15 |  |  |
Commitment fee on undrawn portion of facility | 0.125% | 0.15% |  |
Unsecured Notes Two [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt to total capital ratio | 0.25 |  |  |
Commitment fee on undrawn portion of facility | 0.225% |  |  |
Unsecured Notes Two [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 1.125% |  |  |
Debt to total capital ratio | 0.15 |  |  |
Unsecured Notes Two [Member] | Revolving Credit Facility [Member] | LIBOR [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 1.625% |  |  |
Debt to total capital ratio | 0.25 |  |  |
Level 2 [Member] | Borrowings [Member] | Unsecured Notes One [Member] | Unsecured debt [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Unsecured debt |  | $ 375,000 | $ 375,000 |
Interest rate |  | 4.40% |  |
Level 2 [Member] | Borrowings [Member] | Unsecured Notes Two [Member] | Unsecured debt [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Unsecured debt |  | $ 0 | $ 0 |
Level 2 [Member] | Borrowings [Member] | Unsecured Notes Two [Member] | Unsecured debt [Member] | LIBOR [Member] | Minimum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.1125% |  |
Level 2 [Member] | Borrowings [Member] | Unsecured Notes Two [Member] | Unsecured debt [Member] | LIBOR [Member] | Maximum [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.1625% |  |

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