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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) Segment | Sep. 30, 2019 USD ($)
Basis of Presentation and Summary of Significant Accounting Policies [Line Items] |  |  |  |
Other income | $ (54) | $ (503) | $ 5,586 | $ (478)
General and administrative | $ 8,586 | $ 8,525 | $ 28,087 | $ 27,050
Number of operating segments | Segment |  |  | 1 |
Number of reportable segments | Segment |  |  | 1 |
ASU 2016-13 |  |  |  |
Basis of Presentation and Summary of Significant Accounting Policies [Line Items] |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  | true |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2020 |  | Jan. 01, 2020 |
Change in accounting principle, accounting standards update, immaterial effect | true |  | true |
ASU 2017-04 |  |  |  |
Basis of Presentation and Summary of Significant Accounting Policies [Line Items] |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  | true |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2020 |  | Jan. 01, 2020 |
Change in accounting principle, accounting standards update, immaterial effect | true |  | true |
ASU 2018-13 |  |  |  |
Basis of Presentation and Summary of Significant Accounting Policies [Line Items] |  |  |  |
Change in accounting principle, accounting standards update, adopted | true |  | true |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2020 |  | Jan. 01, 2020 |
Change in accounting principle, accounting standards update, immaterial effect | true |  | true |
CARES Act |  |  |  |
Basis of Presentation and Summary of Significant Accounting Policies [Line Items] |  |  |  |
Grant amount received |  |  | $ 6,200 |
Other income |  |  | 5,300 |
General and administrative |  |  | $ 900 |

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