Segment Information (Schedule Of Information By Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net operating revenue	$ 150,818	$ 146,435	$ 281,261	$ 282,451
Payroll expense	39,820	39,996	78,610	80,584
Operating expenses	32,330	31,691	61,209	61,359
Gaming tax expense	39,189	37,107	74,440	73,332
Other segment items	9,916	10,193	17,565	18,460
Pre-opening and termination expenses	741		(1,022)
Acquisition costs				19
(Loss) earnings before income taxes	(8,323)	(9,394)	(26,720)	(25,074)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(12,309)	(41,613)	(32,922)	(55,157)
Interest expense (income), net	25,938	25,083	51,594	50,211
Income tax expense (benefit)	1,250	29,619	1,732	25,633
Depreciation and amortization	12,843	12,449	25,236	24,480
Net earnings (loss) attributable to non-controlling interests	2,736	2,600	4,470	4,450
Non-cash stock-based compensation	195	343	486	846
(Gain) loss on foreign currency transactions, cost recovery income and other	(1,124)	(1,282)	(1,243)	(2,590)
Loss (gain) on disposition of fixed assets	34	249	84	843
Adjusted EBITDAR	30,304	27,448	50,459	48,697
Cost recovery income	991	1,066	991	1,066
Segment assets	85,541	123,200	85,541	123,200	$ 98,769
Long-lived assets	1,071,861	1,123,210	1,071,861	1,123,210
Total assets	1,208,451	1,301,694	1,208,451	1,301,694	$ 1,226,312
Capital expenditures	5,809	15,940	12,498	34,340
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue				13
Payroll expense	1,243	1,277	2,618	2,761
Operating expenses	1,692	2,210	3,467	4,514
Other segment items	3	3	3	4
Acquisition costs				19
(Loss) earnings before income taxes	(12,628)	(14,138)	(25,292)	(28,625)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(12,666)	(14,989)	(25,506)	(28,131)
Interest expense (income), net	9,469	10,257	18,768	20,765
Income tax expense (benefit)	38	851	214	(494)
Depreciation and amortization	18	43	36	97
Non-cash stock-based compensation	195	343	486	846
(Gain) loss on foreign currency transactions, cost recovery income and other	8	5	(86)	(350)
Loss (gain) on disposition of fixed assets				1
Adjusted EBITDAR	(2,938)	(3,490)	(6,088)	(7,285)
Segment assets	27,867	49,263	27,867	49,263
Long-lived assets	2,743	3,074	2,743	3,074
Total assets	37,766	61,130	37,766	61,130
Capital expenditures	10	21	19	52
United States Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	106,104	106,515	199,401	202,543
United States Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	106,104	106,515	199,401	202,543
Payroll expense	25,670	26,408	51,548	53,539
Operating expenses	20,534	20,279	39,102	38,724
Gaming tax expense	27,135	27,196	52,372	52,821
Other segment items	7,072	7,595	12,287	13,284
(Loss) earnings before income taxes	1,576	2,408	(4,184)	(879)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(487)	(27,593)	(8,030)	(29,137)
Interest expense (income), net	13,082	11,694	26,189	23,440
Income tax expense (benefit)	223	28,225	223	24,705
Depreciation and amortization	11,010	10,803	22,016	21,093
Net earnings (loss) attributable to non-controlling interests	1,840	1,776	3,623	3,553
Loss (gain) on disposition of fixed assets	25	132	71	521
Adjusted EBITDAR	25,693	25,037	44,092	44,175
Segment assets	28,941	37,666	28,941	37,666
Long-lived assets	893,661	953,716	893,661	953,716
Total assets	940,744	1,012,181	940,744	1,012,181
Capital expenditures	4,653	14,413	10,505	31,587
Canada Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,005	19,827	36,521	38,153
Canada Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,005	19,827	36,521	38,153
Payroll expense	6,097	5,993	11,557	11,617
Operating expenses	6,446	6,516	11,588	12,373
Other segment items	1,855	1,867	3,409	3,564
(Loss) earnings before income taxes	2,119	2,308	2,302	4,244
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	599	1,009	533	2,146
Interest expense (income), net	3,338	3,152	6,546	6,061
Income tax expense (benefit)	748	456	964	1,184
Depreciation and amortization	1,074	1,088	2,073	2,237
Net earnings (loss) attributable to non-controlling interests	772	843	805	914
(Gain) loss on foreign currency transactions, cost recovery income and other	(922)	(1,098)	(952)	(1,907)
Loss (gain) on disposition of fixed assets	(2)	1	(2)	(36)
Adjusted EBITDAR	5,607	5,451	9,967	10,599
Segment assets	23,335	27,792	23,335	27,792
Long-lived assets	132,151	131,713	132,151	131,713
Total assets	178,700	182,660	178,700	182,660
Capital expenditures	973	594	1,741	1,425
Poland Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	24,709	20,093	45,339	41,742
Poland Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	24,709	20,093	45,339	41,742
Payroll expense	6,810	6,318	12,887	12,667
Operating expenses	3,658	2,686	7,052	5,748
Gaming tax expense	12,054	9,911	22,068	20,511
Other segment items	986	728	1,866	1,608
Pre-opening and termination expenses	741		(1,022)
(Loss) earnings before income taxes	610	28	454	186
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	245	(40)	81	(35)
Interest expense (income), net	49	(20)	91	(55)
Income tax expense (benefit)	241	87	331	238
Depreciation and amortization	741	515	1,111	1,053
Net earnings (loss) attributable to non-controlling interests	124	(19)	42	(17)
(Gain) loss on foreign currency transactions, cost recovery income and other	(210)	(189)	(205)	(333)
Loss (gain) on disposition of fixed assets	11	116	15	357
Adjusted EBITDAR	1,942	450	2,488	1,208
Segment assets	5,398	8,479	5,398	8,479
Long-lived assets	43,306	34,707	43,306	34,707
Total assets	51,241	45,723	51,241	45,723
Capital expenditures	173	912	233	1,276
Subsidiary Of VICIPropCo - CDR Land Lease [Member] | Canada Segment [Member]
Segment Reporting Information [Line Items]
Cost recovery income	$ 1,000	$ 1,100	$ 1,000	$ 1,100