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Stockholders Equity (Registration Statements and At-the-Market Offering) (Details) - USD ($) $ in Millions |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
May 24, 2021 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 12, 2024 | May 31, 2024 | Jul. 31, 2018
At the Market Offering |  |  |  |  |  |
Stockholders' Equity |  |  |  |  |  |
Issuance of common shares (in shares) |  | 0 | 0 |  |  |
Agent commission (as a percent) |  |  |  |  | 3.00% | 3.00%
2021 S-3 |  |  |  |  |  |
Stockholders' Equity |  |  |  |  |  |
Sale of Stock aggregate offering price | $ 200.0 |  |  |  |  |
Issuance of common shares (in shares) | 4,400,000 |  |  |  |  |
2024 S-3 |  |  |  |  |  |
Stockholders' Equity |  |  |  |  |  |
Sale of Stock aggregate offering price |  |  |  | $ 40.0 |  |
Shares available for future issuance |  | $ 37.5 |  |  |  |

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