Fair Value Measurements and Derivative Instruments Reporting (Narrative) (Details) CAD in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 CAD item	Dec. 31, 2016 USD ($) item
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on a nonrecurring basis		$ 0
Cash equivalents		0			$ 0
Operating expenses	$ 123,069,000	$ 117,938,000	$ 117,391,000
Number of interest rate swap agreements | item				2	2
Derivative Instruments			0
Sosnowiec Casino License [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Casino license			0		$ 0
Operating expenses	$ 400,000		$ 700,000
Minimum [Member] | Interest Rate Swap Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
CDOR exchange rate				3.89	3.89
Maximum [Member] | Interest Rate Swap Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
CDOR exchange rate				3.92	3.92
BMO Credit Agreement [Member] | Interest Rate Swap Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument maturity date	Aug. 15, 2019
Notional Value				CAD 9.2	$ 6,900,000
BMO Credit Agreement [Member] | Minimum [Member] | Interest Rate Swap Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
CDOR exchange rate				3.89	3.89
BMO Credit Agreement [Member] | Maximum [Member] | Interest Rate Swap Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
CDOR exchange rate				3.92	3.92