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Stockholders' Equity - DRSPP (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 226 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021 | Oct. 15, 2019
Class of Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) | 874,300,000 | 874,300,000 | 874,300,000 | 874,300,000 |
DRSPP |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) |  |  |  |  | 2,250,000
Shares of common stock authorized and available for issuance (in shares) | 2,000,000 | 2,000,000 | 2,000,000 |  |
Common shares issued through DRSPP (in shares) | 38,402 | 70,862 | 8,832,388 |  |
Value of shares issued net of expenses | $ 552 | $ 1,100 | $ 290,600 |  |

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