Segment Information (Schedule Of Information By Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net operating revenue	$ 153,724	$ 155,701	$ 434,984	$ 438,147
Payroll expense	40,668	41,552	119,277	122,137
Operating expenses	35,369	34,494	96,578	95,850
Gaming tax expense	37,079	36,750	111,519	110,081
Other segment items	10,313	12,756	27,879	31,215
Pre-opening and termination expenses	769		(1,790)
Acquisition costs				19
Pre-opening expenses		(2,753)		(2,753)
Earnings (loss) before income taxes	(8,972)	(7,059)	(35,692)	(32,133)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(10,548)	(8,119)	(43,470)	(63,276)
Interest expense (income), net	26,013	25,104	77,607	75,316
Income tax expense (benefit)	423	(334)	2,155	25,299
Depreciation and amortization	12,817	12,462	38,053	36,942
Net earnings (loss) attributable to non-controlling interests	1,153	1,394	5,623	5,844
Non-cash stock-based compensation	316	(280)	802	566
Loss (gain) on foreign currency transactions, cost recovery income and other	81	(101)	(1,162)	(2,693)
Loss (gain) on disposition of fixed assets	40	23	123	866
Adjusted EBITDAR	31,064	32,902	81,521	81,598
Cost recovery income			991	1,066
Segment assets	77,692	118,770	77,692	118,770	$ 98,769
Long-lived assets	1,032,290	1,128,667	1,032,290	1,128,667
Total assets	1,158,904	1,302,655	1,158,904	1,302,655	$ 1,199,839
Capital expenditures	4,876	10,206	17,374	44,546
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue				13
Payroll expense	1,167	1,374	3,785	4,135
Operating expenses	1,888	1,743	5,354	6,254
Other segment items	21		24	4
Acquisition costs				19
Earnings (loss) before income taxes	(12,915)	(13,031)	(38,204)	(41,656)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(12,824)	(13,273)	(38,328)	(40,770)
Interest expense (income), net	9,499	10,157	28,269	30,927
Income tax expense (benefit)	(91)	242	124	(886)
Depreciation and amortization	20	36	54	135
Non-cash stock-based compensation	316	(280)	802	566
Loss (gain) on foreign currency transactions, cost recovery income and other	4	1	(83)	(352)
Loss (gain) on disposition of fixed assets			(1)
Adjusted EBITDAR	(3,076)	(3,117)	(9,163)	(10,399)
Segment assets	25,694	57,341	25,694	57,341
Long-lived assets	2,627	3,026	2,627	3,026
Total assets	33,042	66,472	33,042	66,472
Capital expenditures	3		22	52
United States Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	114,997	117,139	314,396	319,680
United States Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	114,997	117,139	314,396	319,680
Payroll expense	27,113	27,607	78,661	81,146
Operating expenses	23,250	22,660	62,355	61,380
Gaming tax expense	28,014	27,706	80,386	80,527
Other segment items	7,478	9,994	19,765	23,278
Earnings (loss) before income taxes	4,926	6,475	733	5,601
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	3,155	4,701	(4,884)	(25,066)
Interest expense (income), net	13,093	11,720	39,283	35,159
Income tax expense (benefit)			223	25,340
Depreciation and amortization	11,065	10,939	33,084	32,030
Net earnings (loss) attributable to non-controlling interests	1,771	1,774	5,394	5,327
Loss (gain) on foreign currency transactions, cost recovery income and other	36	25	36	24
Loss (gain) on disposition of fixed assets	22	13	93	535
Adjusted EBITDAR	29,142	29,172	73,229	73,349
Segment assets	25,389	31,808	25,389	31,808
Long-lived assets	858,631	954,260	858,631	954,260
Total assets	903,255	1,007,107	903,255	1,007,107
Capital expenditures	3,868	7,905	14,373	39,492
Canada Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,589	20,275	57,109	58,425
Canada Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,589	20,275	57,109	58,425
Payroll expense	6,200	6,257	17,757	17,874
Operating expenses	6,888	7,049	18,476	19,425
Other segment items	2,078	2,080	5,487	5,644
Earnings (loss) before income taxes	891	614	3,195	4,853
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	297	1,134	832	3,276
Interest expense (income), net	3,361	3,241	9,905	9,300
Income tax expense (benefit)	625	(481)	1,589	702
Depreciation and amortization	1,151	1,078	3,223	3,315
Net earnings (loss) attributable to non-controlling interests	(31)	(39)	774	875
Loss (gain) on foreign currency transactions, cost recovery income and other	17	(44)	(935)	(1,950)
Loss (gain) on disposition of fixed assets	3		1	(36)
Adjusted EBITDAR	5,423	4,889	15,389	15,482
Segment assets	23,078	24,870	23,078	24,870
Long-lived assets	128,882	133,480	128,882	133,480
Total assets	174,721	184,380	174,721	184,380
Capital expenditures	526	235	2,267	1,660
Poland Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	18,138	18,287	63,479	60,029
Poland Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	18,138	18,287	63,479	60,029
Payroll expense	6,188	6,314	19,074	18,982
Operating expenses	3,343	3,042	10,393	8,791
Gaming tax expense	9,065	9,044	31,133	29,554
Other segment items	736	682	2,603	2,289
Pre-opening and termination expenses	769		(1,790)
Pre-opening expenses		(2,753)		(2,753)
Earnings (loss) before income taxes	(1,874)	(1,117)	(1,416)	(931)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(1,176)	(681)	(1,090)	(716)
Interest expense (income), net	60	(14)	150	(70)
Income tax expense (benefit)	(111)	(95)	219	143
Depreciation and amortization	581	409	1,692	1,462
Net earnings (loss) attributable to non-controlling interests	(587)	(341)	(545)	(358)
Loss (gain) on foreign currency transactions, cost recovery income and other	24	(83)	(180)	(415)
Loss (gain) on disposition of fixed assets	15	10	30	367
Adjusted EBITDAR	(425)	1,958	2,066	3,166
Segment assets	3,531	4,751	3,531	4,751
Long-lived assets	42,150	37,901	42,150	37,901
Total assets	47,886	44,696	47,886	44,696
Capital expenditures	$ 479	$ 2,066	712	3,342
Subsidiary Of VICIPropCo - CDR Land Lease [Member] | Canada Segment [Member]
Segment Reporting Information [Line Items]
Cost recovery income			$ 1,000	$ 1,100