Apex Acquisition (Schedule of Unaudited Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015
Apex Acquisition [Abstract]
Net operating revenue	$ 108,209	$ 108,551
Net earnings attributable to Century Casinos, Inc. shareholders	$ 7,012	$ 12,089
Basic and diluted earnings per share	$ 0.29	$ 0.49

Acquisition Of Subsidiary [Abstract]

No definition available.

Name:	cnty_AcquisitionOfSubsidiaryAbstract
Namespace Prefix:	cnty_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Business acquisition, pro forma earnings per share, basic and diluted.

+ References

No definition available.

+ Details

Name:	cnty_BusinessAcquisitionProFormaEarningsPerShareBasicAndDiluted
Namespace Prefix:	cnty_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

+ Details

Name:	us-gaap_BusinessAcquisitionsProFormaRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration