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Share-Based Compensation (Details) $ / shares in Units, $ in Thousands |  |  |  | 11 Months Ended | 12 Months Ended
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Mar. 01, 2018 Unit $ / shares shares | Jan. 08, 2018 Member Tranche $ / shares shares | Mar. 03, 2016 Member Tranche $ / shares shares | Nov. 15, 2018 shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Recognized share based compensation expenses | $ |  |  |  |  | $ 50 | $ 272 | $ 283
Restricted Stock Units [Member] | Management [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Compensation, Grants in Period |  |  |  |  |  |  | 25,000
2015 Plan [Member] | Director [Member] | Common Class A [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares issued |  |  |  | 60,425 |  | 4,266 | 4,266
Shares issued as percentage of directors base fee |  |  |  |  |  | 20.00% | 20.00%
Shares issued notional value per share | $ / shares |  |  |  |  |  | $ 32 | $ 32
2015 Plan [Member] | Restricted Stock Units [Member] | Management [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of members granted with restricted stock units | 5 | 5 | 4 |  |  |  |
Number of tranches | 2 | 2 | 2 |  |  |  |
2015 Plan [Member] | Restricted Stock Units [Member] | First Tranche [Member] | Management [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting date | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2016 |  |  |  |
Share-based Compensation, Grants in Period | 12,500 | 12,500 | 12,500 |  |  |  |
2015 Plan [Member] | Restricted Stock Units [Member] | Second Tranche [Member] | Management [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting date | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2016 |  |  |  |
Share-based Compensation, Grants in Period | 12,500 | 12,500 | 12,500 |  |  |  |
Number of consecutive trading days | 20 days | 20 days | 20 days |  |  |  |
2015 Plan [Member] | Restricted Stock Units [Member] | Second Tranche [Member] | Management [Member] | Minimum [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share price | $ / shares | $ 24.00 | $ 24.00 | $ 40.00 |  |  |  |
2019 Plan [Member] | Common Class A [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Term of Equity Incentive Plan |  |  |  |  | 10 years |  |
Maximum number of shares approved under Equity Incentive Plan |  |  |  |  | 1,812,500 |  |
2019 Plan [Member] | Maximum [Member] | Common Class A [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Maximum Number of shares granted in any one calendar year |  |  |  |  | 12,500 |  |
Maximum Value of shares granted in any one calendar year | $ |  |  |  |  | $ 100,000 |  |

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