Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Significant Accounting Policies [Line Items]
Restricted cash			$ 1,013		$ 1,013
Estimated cost of promotional allowances	[1]		2,743		7,756
Duration in which payments for management and consulting services fees are typically due				30 days
Impairment on receivables and contract liabilities				$ 0
Contract Liabilitiy		$ 200	200	200	200
Hotel, Food And Beverage [Member]
Significant Accounting Policies [Line Items]
Estimated cost of promotional allowances		300		$ 900
Maximum [Member]
Significant Accounting Policies [Line Items]
Duration of Company's contracts and contract liabilities				1 year
Expected duration of performace obligation				1 year
Included In Deposits And Other [Member]
Significant Accounting Policies [Line Items]
Restricted cash		721	$ 748	$ 721	$ 748
Included In Deposits And Other [Member] | Century Casino Bath [Member]
Significant Accounting Policies [Line Items]
Restricted cash		600		600
Deposits Related To Payments Of Prizes and Giveaways [Member] | Casinos Poland Ltd [Member]
Significant Accounting Policies [Line Items]
Restricted cash		$ 100		$ 100

[1] See Note 2 for a discussion of the impact of the adoption of ASU 2014-09 on the presentation of promotional allowances