| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating revenue: | ||||||||||||||||
| Net operating revenue | ||||||||||||||||
| YoY growth | +0.8% | +5.2% | +0.2% | -1.3% | ||||||||||||
| Operating costs and expenses: | ||||||||||||||||
| General and administrative | ||||||||||||||||
| Depreciation and amortization | ||||||||||||||||
| Total operating costs and expenses | ||||||||||||||||
| Earnings from operations | ||||||||||||||||
| % of revenue | 11.3% | 8.6% | 7.6% | 11.1% | ||||||||||||
| Non-operating (expense) income: | ||||||||||||||||
| Interest income | ||||||||||||||||
| Interest expense | ||||||||||||||||
| (Loss) gain on foreign currency transactions, cost recovery income and other (Note 1) | ||||||||||||||||
| Non-operating (expense) income, net | ||||||||||||||||
| Loss before income taxes | ||||||||||||||||
| Income tax expense | ||||||||||||||||
| Net loss | ||||||||||||||||
| % of revenue | -6.1% | -10.8% | -11.6% | -6.1% | ||||||||||||
| Net earnings attributable to non-controlling interests | ||||||||||||||||
| Net loss attributable to Century Casinos, Inc. shareholders | ||||||||||||||||
| % of revenue | -7.2% | -12.0% | -13.0% | -6.9% | ||||||||||||
| Loss per share attributable to Century Casinos, Inc. shareholders: | ||||||||||||||||
| Basic | ||||||||||||||||
| Diluted |