Goodwill And Intangible Assets (Changes In Carrying Amount - Indefinited-Lived) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	$ 42,501
Balance at end of the period	31,195
Trademarks [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	1,719
Currency translation	(34)
Balance at end of the period	1,685
Casino Licenses [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	40,782
Impairment	(10,960)
Currency translation	(312)
Balance at end of the period	29,510
Century Casinos [Member] | Trademarks [Member] | Corporate And Other [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	108
Currency translation
Balance at end of the period	108
Poland [Member] | Casinos Poland [Member] | Trademarks [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	1,611
Currency translation	(34)
Balance at end of the period	1,577
United States [Member] | Casino Licenses [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	28,922
Impairment	(10,960)
Currency translation
Balance at end of the period	17,962
Canada [Member] | Casino Licenses [Member]
Indefinite-lived Intangible Assets [Line Items]
Balance at beginning of the period	11,860
Impairment
Currency translation	(312)
Balance at end of the period	$ 11,548