Condensed Consolidated Statements Of Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating revenue:
Net operating revenue	$ 72,415	$ 87,656
Operating costs and expenses:
General and administrative	20,268	26,372
Depreciation and amortization	6,643	6,495
Impairment - intangible and tangible assets		33,964
Total operating costs and expenses	64,167	119,428
Earnings (loss) from operations	8,248	(31,772)
Non-operating (expense) income:
Interest income		1
Interest expense	(10,522)	(11,367)
Gain on foreign currency transactions, cost recovery income and other	470	1
Non-operating (expense) income, net	(10,052)	(11,365)
Loss before income taxes	(1,804)	(43,137)
Income tax expense	(99)	(2,524)
Net loss	(1,903)	(45,661)
Net loss (earnings) attributable to non-controlling interests	484	(195)
Net loss attributable to Century Casinos, Inc. shareholders	$ (1,419)	$ (45,856)
Loss per share attributable to Century Casinos, Inc. shareholders:
Basic	$ (0.05)	$ (1.55)
Diluted	$ (0.05)	$ (1.55)
Weighted average shares outstanding - basic	29,576	29,507
Weighted average shares outstanding - diluted	29,576	29,507
Gaming [Member]
Operating revenue:
Operating revenue	$ 63,428	$ 74,292
Operating costs and expenses:
Operating costs and expenses	31,739	42,043
Pari-Mutuel And Sports Betting [Member]
Operating revenue:
Operating revenue	2,484	2,352
Operating costs and expenses:
Operating costs and expenses	2,401	3,160
Hotel [Member]
Operating revenue:
Operating revenue	1,750	1,816
Operating costs and expenses:
Operating costs and expenses	511	724
Food And Beverage [Member]
Operating revenue:
Operating revenue	2,720	6,552
Operating costs and expenses:
Operating costs and expenses	2,605	6,670
Other [Member]
Operating revenue:
Operating revenue	$ 2,033	$ 2,644