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Income Tax Expense (Recovery) (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 | Aug. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Tax Contingency [Line Items] |  |  |  |
Decrease for positions taken in prior periods |  |  | $ 0 | $ 16,441
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority |  |  |  | 9,800
Settlement with Taxing Authority [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Payments for Other Taxes | $ 1,100 | $ 8,500 |  |
Decrease for positions taken in prior periods |  |  |  | $ 16,400

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