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Equity Incentive Awards - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
General and Administrative Expense |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense | $ 2.7 |  | $ 2.6 | $ 5.6 | $ 5.0
Restricted Stock | 2014 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares issued (in shares) |  | 90,933 |  |  |
Shares categorized as vesting (percent) |  | 50.00% |  |  |
Vesting period |  | 3 years |  | 3 years |
Fair value of shares issued |  | $ 3.3 |  |  |
Shares categorized as performance based (percent) |  | 50.00% |  |  |
Restricted Stock | 2014 Plan | Share-based Payment Arrangement, Tranche One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting percentage |  |  |  | 33.33% |
Restricted Stock | 2014 Plan | Share-based Payment Arrangement, Tranche Two |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting percentage |  |  |  | 33.33% |
Restricted Stock | 2014 Plan | Share-based Payment Arrangement, Tranche Three |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting percentage |  |  |  | 33.33% |
Performance Shares | 2014 Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of shares issued |  | $ 1.1 |  |  |
Grants in period (in shares) |  | 15,154 |  |  |

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