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Share Capital - Shares (Share Capital Activity) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020
Schedule Of Capitalization Equity [Line Items] |  |
Share options exercised, shares |  | 13,594
Share options exercised | $ 163 | $ 163
Share Capital |  |
Schedule Of Capitalization Equity [Line Items] |  |
Beginning balance, shares | 25,684,000 | 25,672,983
Shares withheld for net settlement of shares issued, Number of shares |  | (10,341)
Share options exercised, shares | 14,000 | 13,594
Issuance of vested shares, Number of shares |  | 24,505
Ending balance, shares | 25,700,741 | 25,700,741
Beginning balance |  | $ 3
Ending balance | $ 3 | $ 3

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