Segment Information (Schedule Of Information By Reportable Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net operating revenue	$ 130,443	$ 136,017
Payroll expense	38,789	40,587
Operating expenses	28,878	29,671
Gaming tax expense	35,252	36,224
Other segment items	7,650	8,266
(Loss) earnings before income taxes	(18,398)	(15,680)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(20,613)	(13,544)
Interest expense (income), net	25,657	25,129
Income tax expense (benefit)	481	(3,986)
Depreciation and amortization	12,394	12,031
Net earnings (loss) attributable to non-controlling interests	1,734	1,850
Non-cash stock-based compensation	290	503
(Gain) loss on foreign currency transactions, cost recovery income and other	(119)	(1,308)
Loss (gain) on disposition of fixed assets	50	594
Acquisition costs		19
Pre-opening and termination expenses	281
Adjusted EBITDAR	20,155	21,250
Segment assets	84,705	136,543	$ 98,769
Long-lived assets	1,074,075	1,116,689
Total assets	1,212,570	1,335,492	$ 1,226,312
Capital expenditures	6,689	18,400
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue		13
Payroll expense	1,376	1,483
Operating expenses	1,773	2,305
(Loss) earnings before income taxes	(12,662)	(14,489)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(12,837)	(11,897)
Interest expense (income), net	9,298	10,511
Income tax expense (benefit)	175	(2,592)
Depreciation and amortization	19	56
Non-cash stock-based compensation	290	503
(Gain) loss on foreign currency transactions, cost recovery income and other	(94)	(356)
Acquisition costs		19
Adjusted EBITDAR	(3,149)	(3,794)
Segment assets	27,083	50,278
Long-lived assets	2,843	3,214
Total assets	40,455	89,055
Capital expenditures	9	31
United States Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	93,296	96,034
United States Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	93,296	96,034
Payroll expense	25,878	27,132
Operating expenses	18,568	18,442
Gaming tax expense	25,237	25,625
Other segment items	5,215	5,689
(Loss) earnings before income taxes	(5,766)	(3,278)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(7,550)	(2,782)
Interest expense (income), net	13,110	11,746
Income tax expense (benefit)		(2,273)
Depreciation and amortization	11,007	10,288
Net earnings (loss) attributable to non-controlling interests	1,784	1,777
Loss (gain) on disposition of fixed assets	47	390
Adjusted EBITDAR	18,398	19,146
Segment assets	32,564	44,453
Long-lived assets	903,100	952,611
Total assets	952,952	1,017,194
Capital expenditures	5,852	17,174
Canada Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	16,516	18,321
Canada Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	16,516	18,321
Payroll expense	5,459	5,623
Operating expenses	5,143	5,860
Other segment items	1,554	1,697
(Loss) earnings before income taxes	187	1,931
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(61)	1,132
Interest expense (income), net	3,207	2,907
Income tax expense (benefit)	217	728
Depreciation and amortization	998	1,149
Net earnings (loss) attributable to non-controlling interests	31	71
(Gain) loss on foreign currency transactions, cost recovery income and other	(31)	(809)
Loss (gain) on disposition of fixed assets	(1)	(37)
Adjusted EBITDAR	4,360	5,141
Segment assets	20,980	31,216
Long-lived assets	126,333	133,809
Total assets	170,488	189,071
Capital expenditures	768	831
Poland Segment [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,631	21,649
Poland Segment [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	20,631	21,649
Payroll expense	6,076	6,349
Operating expenses	3,394	3,064
Gaming tax expense	10,015	10,599
Other segment items	881	880
(Loss) earnings before income taxes	(157)	156
Net earnings (loss) attributable to Century Casinos, Inc. shareholders	(165)	3
Interest expense (income), net	42	(35)
Income tax expense (benefit)	89	151
Depreciation and amortization	370	538
Net earnings (loss) attributable to non-controlling interests	(81)	2
(Gain) loss on foreign currency transactions, cost recovery income and other	6	(143)
Loss (gain) on disposition of fixed assets	4	241
Pre-opening and termination expenses	281
Adjusted EBITDAR	546	757
Segment assets	4,078	10,596
Long-lived assets	41,799	27,055
Total assets	48,675	40,172
Capital expenditures	$ 60	364
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue		$ 13