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Shareholders' Equity - Common Stock, Distributions, Prospectus Supplement and Preferred Stock (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 vote shares | Dec. 31, 2017 shares | Nov. 09, 2017 USD ($)
Class of Stock [Line Items] |  |  |
Number of votes per each share | vote | 1 |  |
Common stock, voting rights | one vote per share |  |
Stock split, conversion ratio | 1.5 |  |
Minimum % of REIT taxable income to be paid as dividend annually | 90.00% |  |
Preferred stock, shares authorized | 30,000,000 | 30,000,000 |
Preferred stock, shares outstanding (shares) | 0 | 0 |
Prospectus Supplement |  |  |
Class of Stock [Line Items] |  |  |
Maximum common stock value authorized under prospectus supplement | $ |  |  | $ 150,000,000
Shares sold (in shares) | 0 | 0 |

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