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Commitments And Contingencies (Narrative) (Details) $ in Thousands, zł in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2020 PLN (zł) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 PLN (zł) | Dec. 31, 2019 USD ($)
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |
Contingent liability | $ 1,156 |  |  | $ 1,156 |  |  |  | $ 334
General and administrative | 31,374 |  | $ 19,426 | 73,359 |  | $ 56,438 |  |
Casinos Poland [Member] |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |
Income tax audit costs |  |  |  | 4,200 | zł 14.3 |  |  |
Casinos Poland [Member] | Lot Polish Airlines Invesment [Member] |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |
General and administrative |  | $ 700 |  |  | zł 3.0 |  |  |
Casinos Poland [Member] | Polish Airports Company [Member] | Lot Polish Airlines Invesment [Member] |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |
Ownership interest |  | 33.30% |  |  |  |  |  |
Review of All Tax Open Periods [Member] |  |  |  |  |  |  |  |
Commitments and Contingencies [Line items] |  |  |  |  |  |  |  |
Contingent liability | $ 1,200 |  |  | $ 1,200 |  |  | zł 4.5 |

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