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Income Taxes - Operating Loss Carryforward Expirations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating Loss Carryforwards [Line Items] |  |
Total | $ (80,137) |
Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (51,295) |
Capital loss carryforwards |  | $ 100,874
U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | 2,119
Expiring net operating loss carryforwards | (20,770) |
Mexico |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (7,971) |
Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (101) |
Australia |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards |  | $ 49,418
Tax Year 2021 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (20) |
Tax Year 2021 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (20) |
Tax Year 2022 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (6,737) |
Tax Year 2022 | Mexico |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (6,706) |
Tax Year 2022 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (31) |
Tax Year 2023 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (414) |
Tax Year 2023 | Mexico |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (392) |
Tax Year 2023 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (22) |
Tax Year 2024 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (4) |
Tax Year 2024 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (4) |
Tax Year 2025 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (90) |
Tax Year 2025 | Mexico |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (84) |
Tax Year 2025 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (6) |
Tax Year 2026 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (1,822) |
Tax Year 2026 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (1,027) |
Tax Year 2026 | Mexico |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (789) |
Tax Year 2026 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (6) |
Tax Year 2027 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (853) |
Tax Year 2027 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (847) |
Tax Year 2027 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (6) |
Tax Year 2028 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (6,538) |
Tax Year 2028 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (5,245) |
Tax Year 2028 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (1,287) |
Tax Year 2028 | Barbados |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (6) |
Tax Year 2029 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (5,741) |
Tax Year 2029 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (4,022) |
Tax Year 2029 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (1,719) |
Tax Year 2030 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (7,002) |
Tax Year 2030 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (5,032) |
Tax Year 2030 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (1,970) |
Tax Year 2031 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (5,633) |
Tax Year 2031 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (3,806) |
Tax Year 2031 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (1,827) |
Tax Year 2032 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (9,804) |
Tax Year 2032 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (6,397) |
Tax Year 2032 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (3,407) |
Tax Year 2033 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (8,508) |
Tax Year 2033 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (6,185) |
Tax Year 2033 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (2,323) |
Tax Year 2034 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (7,518) |
Tax Year 2034 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (4,420) |
Tax Year 2034 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (3,098) |
Tax year 2035 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (3,731) |
Tax year 2035 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (3,729) |
Tax year 2035 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (2) |
Tax Year 2036 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (5,454) |
Tax Year 2036 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (2,799) |
Tax Year 2036 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (2,655) |
Tax Year 2037 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (4,398) |
Tax Year 2037 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (1,916) |
Tax Year 2037 | U.S. |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring net operating loss carryforwards | (2,482) |
Tax Year 2038 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (2,666) |
Tax Year 2038 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | (2,666) |
Tax Year 2039 |  |
Operating Loss Carryforwards [Line Items] |  |
Total | (3,204) |
Tax Year 2039 | Canada |  |
Operating Loss Carryforwards [Line Items] |  |
Expiring noncapital loss carryforwards | $ (3,204) |

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