Segment And Geographic Information (Segment Information) (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
		Feb. 28, 2022	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Segment Reporting Information [Line Items]
Net operating revenue			$ 430,529		$ 388,506		$ 304,268
Earnings from equity investment			3,249
Earnings (loss) before income taxes			6,010		28,149		(43,288)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			7,976		20,622		(48,002)
Income taxes (benefit)			(7,660)		6,371		4,848
Depreciation and amortization			27,109		26,762		26,534
Net earnings attributable to non-controlling interests			5,694		1,156		(134)
Non-cash stock-based compensation			3,335		2,652		(214)
(Gain) loss on foreign currency transactions, cost recovery income and other			(3,378)		(2,289)		63
Impairment - intangible and tangible assets							35,121
Total assets			884,967		703,358
Cash payments related to lease			5,168		5,201		6,355
Income related to the sale of the casino operations					24		(6,575)
Amortization of deferred financing costs			9,716		1,565		1,614
Acquisition escrow in restricted cash			100,200
Equity investment			93,260
Smooth Bourbon, LLC [Member]
Segment Reporting Information [Line Items]
Earnings from equity investment			3,249
Equity investment			93,260
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue			206		567		1,413
Impairment - intangible and tangible assets			0		0		0
Acquisition escrow in restricted cash			100,200
United States [Member]
Segment Reporting Information [Line Items]
Net operating revenue			268,582		283,285		198,344
Canada [Member]
Segment Reporting Information [Line Items]
Net operating revenue			71,572		46,428		50,240
Poland [Member]
Segment Reporting Information [Line Items]
Net operating revenue			90,169		58,226		54,271
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net operating revenue	[1]		430,529		388,506		304,268
Earnings from equity investment			3,249
Earnings (loss) before income taxes			6,010		28,149		(43,288)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			7,976		20,622		(48,002)
Interest expense (income), net			64,980	[2]	42,658	[3]	43,098	[4]
Income taxes (benefit)			(7,660)		6,371		4,848
Depreciation and amortization			27,109		26,762		26,534
Net earnings attributable to non-controlling interests			5,694		1,156		(134)
Non-cash stock-based compensation			3,335		2,652		(214)
(Gain) loss on foreign currency transactions, cost recovery income and other			(1,236)	[5]	(2,686)	[6]	(13,145)	[7]
Impairment - intangible and tangible assets							35,121
Loss (gain) on disposition of fixed assets			18		391		26
Acquisition costs			3,124				266
Adjusted EBITDA			103,340		97,926		48,398
Long-lived assets			641,033	[8]	561,765	[9]	584,896	[9]
Total assets			884,967	[10]	703,358		680,760
Capital expenditures			19,193		10,012		10,705
Operating Segments [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Net operating revenue	[1]		206		567		1,413
Earnings from equity investment			3,249
Earnings (loss) before income taxes			(48,599)		(25,712)		(18,031)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			(28,664)		(30,570)		(18,609)
Interest expense (income), net			34,854	[2]	13,110	[3]	12,667	[4]
Income taxes (benefit)			(19,935)		4,858		578
Depreciation and amortization			385		432		566
Non-cash stock-based compensation			3,335		2,652		(214)
(Gain) loss on foreign currency transactions, cost recovery income and other			(205)	[5]	(418)	[6]	(6,897)	[7]
Impairment - intangible and tangible assets							1,000
Loss (gain) on disposition of fixed assets			(121)		(37)		1
Acquisition costs			3,124				266
Adjusted EBITDA			(7,227)		(9,973)		(10,642)
Long-lived assets			8,192	[8]	3,412	[9]	3,971	[9]
Total assets			254,886	[10]	57,448		32,523
Capital expenditures			49		531		162
Operating Segments [Member] | United States [Member]
Segment Reporting Information [Line Items]
Net operating revenue	[1]		268,582		283,285		198,344
Earnings (loss) before income taxes			32,354		49,628		(29,548)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			24,759		49,628		(30,571)
Interest expense (income), net			28,531	[2]	28,229	[3]	28,357	[4]
Income taxes (benefit)			7,595				1,023
Depreciation and amortization			19,364		18,398		17,580
(Gain) loss on foreign currency transactions, cost recovery income and other			(1)	[5]	(836)	[6]
Impairment - intangible and tangible assets							30,746
Loss (gain) on disposition of fixed assets			49		341		64
Adjusted EBITDA			80,297		95,760		47,199
Long-lived assets			466,403	[8]	376,210	[9]	385,426	[9]
Total assets			425,820	[10]	422,409		417,388
Capital expenditures			16,000		8,672		7,767
Operating Segments [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Net operating revenue	[1]		71,572		46,428		50,240
Earnings (loss) before income taxes			11,211		3,312		6,869
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			6,070		1,124		2,551
Interest expense (income), net			2,281	[2]	1,796	[3]	2,047	[4]
Income taxes (benefit)			2,354		1,256		3,765
Depreciation and amortization			4,754		4,904		5,264
Net earnings attributable to non-controlling interests			2,787		932		553
(Gain) loss on foreign currency transactions, cost recovery income and other			123	[5]	(545)	[6]	(6,015)	[7]
Impairment - intangible and tangible assets							3,375
Loss (gain) on disposition of fixed assets			27		43		(43)
Adjusted EBITDA			18,396		9,510		11,497
Long-lived assets			139,304	[8]	152,278	[9]	156,433	[9]
Total assets			162,088	[10]	179,297		181,477
Capital expenditures			1,566		646		2,057
Operating Segments [Member] | Poland [Member]
Segment Reporting Information [Line Items]
Net operating revenue	[1]		90,169		58,226		54,271
Earnings (loss) before income taxes			11,044		921		(2,578)
Net earnings (loss) attributable to Century Casinos, Inc. shareholders			5,811		440		(1,373)
Interest expense (income), net			(686)	[2]	(477)	[3]	27	[4]
Income taxes (benefit)			2,326		257		(518)
Depreciation and amortization			2,606		3,028		3,124
Net earnings attributable to non-controlling interests			2,907		224		(687)
(Gain) loss on foreign currency transactions, cost recovery income and other			(1,153)	[5]	(887)	[6]	(233)	[7]
Loss (gain) on disposition of fixed assets			63		44		4
Adjusted EBITDA			11,874		2,629		344
Long-lived assets			27,134	[8]	29,865	[9]	39,066	[9]
Total assets			42,173	[10]	44,204		49,372
Capital expenditures			1,578		163		719
Master Lease [Member] | United States [Member]
Segment Reporting Information [Line Items]
Interest expense (income), net			28,500		28,200		28,400
Cash payments related to lease			25,700		25,300		25,000
CDR Land Lease [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Interest expense (income), net			2,300		1,800		1,500
Cash payments related to lease			2,100		2,000		1,300
Century Casino Calgary [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Income related to the sale of the casino operations							6,500
Mountaineer, Land [Member]
Segment Reporting Information [Line Items]
Income related to the sale unused land					800
Macquarie Capital [Member]
Segment Reporting Information [Line Items]
Amortization of deferred financing costs			400		$ 1,600		$ 1,600
Macquarie Capital [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Amortization of deferred financing costs			$ 7,300
Land and Building [Member] | Calgary [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Loss (gain) on disposition of fixed assets		$ 2,200

[1] For the year ended December 31, 2022 Amounts in thousands United States Canada Poland Corporate and Other Total Net operating revenue ⁽¹⁾ $ 268,582 $ 71,572 $ 90,169 $ 206 $ 430,529 Earnings from equity investment $ — $ — $ — $ 3,249 $ 3,249 Earnings (loss) before income taxes $ 32,354 $ 11,211 $ 11,044 $ (48,599) $ 6,010 Net earnings (loss) attributable to Century Casinos, Inc. shareholders $ 24,759 $ 6,070 $ 5,811 $ (28,664) $ 7,976 Interest expense (income), net ⁽²⁾ 28,531 2,281 (686) 34,854 64,980 Income taxes (benefit) 7,595 2,354 2,326 (19,935) (7,660) Depreciation and amortization 19,364 4,754 2,606 385 27,109 Net earnings attributable to non-controlling interests — 2,787 2,907 — 5,694 Non-cash stock-based compensation — — — 3,335 3,335 (Gain) loss on foreign currency transactions, cost recovery income and other ⁽³⁾ (1) 123 (1,153) (205) (1,236) Loss (gain) on disposition of fixed assets 49 27 63 (121) 18 Acquisition costs — — — 3,124 3,124 Adjusted EBITDA $ 80,297 $ 18,396 $ 11,874 $ (7,227) $ 103,340 Long-lived assets ⁽⁴⁾ $ 466,403 $ 139,304 $ 27,134 $ 8,192 $ 641,033 Total assets ⁽⁵⁾ $ 425,820 $ 162,088 $ 42,173 $ 254,886 $ 884,967 Capital expenditures $ 16,000 $ 1,566 $ 1,578 $ 49 $ 19,193 (1)Net operating revenue for the Corporate and Other segment primarily relates to the Company’s cruise ship operations.

[2] Expense of $28.5 million related to the Master Lease is included in interest expense (income), net in the United States segment. Expense of $2.3 million related to the CDR land lease is included in interest expense (income), net in the Canada segment. Cash payments related to the Master Lease and CDR land lease were $25.7 million and $2.1 million, respectively, for the period presented. Expense of $7.3 million related to the write-off of deferred financing costs in connection with the prepayment of the Macquarie Term Loan is included in interest expense (income), net in the Corporate and Other segment.

[3] Expense of $28.2 million related to the Master Lease is included in interest expense (income), net in the United States segment. Expense of $1.8 million related to the CDR land lease is included in interest expense (income), net in the Canada segment. Cash payments related to the Master Lease and CDR land lease were $25.3 million and $2.0 million, respectively, for the period presented.

[4] Expense of $28.4 million related to the Master Lease is included in interest expense (income), net in the United States segment. Expense of $1.5 million related to the CDR land lease is included in interest expense (income), net in the Canada segment. Cash payments related to the Master Lease and CDR land lease were $25.0 million and $1.3 million, respectively, for the period presented.

[5] Loss of $2.2 million related to the sale of the land and building in Calgary in February 2022 is included in the Canada segment. The loss from the sale was offset by cost recovery income for CDR.

[6] Income of $0.8 million related to the sale of unused land at Mountaineer, net of expenses, is included in the United States segment.

[7] Income of $6.5 million is included in the Canada segment related to the sale of the casino operations of Century Casino Calgary.

[8] Long-lived assets are calculated as total assets less total current assets, deferred income taxes and note receivable, net of current portion and unamortized discount.

[9] Long-lived assets are calculated as total assets less total current assets, deferred income taxes and note receivable, net of current portion and unamortized discount.

[10] Total assets for the Corporate and Other segment include $100.2 million in restricted cash related to the Acquisition Escrow and $93.3 million related to the equity investment in Smooth Bourbon.