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Shareholders Equity - Common Shares (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jul. 19, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Shareholders' Equity |  |  |  |
Aggregate share capital, shares authorized |  | 57,000,000.0 |  |
Common shares, shares authorized |  | 32,000,000 | 32,000,000 |
Common shares, par value (in dollars per share) |  | $ 0.05 | $ 0.05 |
Preferred shares, shares authorized |  | 25,000,000.0 |  |
Preferred stock, par value (in dollars per share) |  | $ 0.001 |  |
Value of shares repurchased |  |  |  | $ 13,859
Treasury Stock, Common |  |  |  |
Shareholders' Equity |  |  |  |
Number of shares repurchased |  |  |  | 34,000
Value of shares repurchased |  |  |  | $ 1,731
Treasury shares reissued during the year |  | 0 | 0 | 0
Common Stock |  |  |  |
Shareholders' Equity |  |  |  |
Shares issued in connection with acquisition of certain development stage technologies in the energy transition space | 147,974 |  |  |
Value of shares issued in connection with acquisition of certain development stage technologies in the energy transition space | $ 12,900 |  |  |
Number of shares which may be forfeited under certain conditions | 71,280 |  |  |
Common shares issued upon conversion of warrants |  | 1,100,000 |  |

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