Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010		Dec. 31, 2010
Deferred Compensation Liability [Abstract]
Deferred Compensation Liability	$ 1,400,000				$ 1,400,000
Property, Plant and Equipment [Abstract]
Land Not Used In Operations	29,200,000				29,200,000				34,946,000
Depreciation expense	25,700,000		27,900,000		77,800,000		81,800,000
Capitalized Interest	3,000,000		100,000		5,200,000		3,600,000
Business Acquisition - Goodwill [Abstract]
Goodwill Impairment	0		0		0		0
Accrued Liabilities [Abstract]
Accrued Customer Loyalty Program, Reward Credits	5,800,000				5,800,000				9,600,000
Accrued Customer Loyalty Program, Tier Levels	5,700,000				5,700,000
Income Statement [Abstract]
Gaming taxes	76,100,000		72,700,000		225,700,000		210,700,000
Pre-opening and development costs	2,465,000		1,201,000		7,174,000		12,171,000
Comprehensive Income, Net of Tax [Abstract]
Net loss	(790,000)		(766,000)		(27,507,000)		(13,337,000)
Foreign currency translation gain	0		0		0		17,100,000
Post-retirement plan benefit obligation, net of income taxes	0	[1]	200,000	[1]	0	[1]	400,000	[1]
Comprehensive income	(800,000)		(600,000)		(27,500,000)		4,200,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	505,199		333,062		513,153		350,276
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	24,700,000				24,700,000
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	0				0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	0				0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets, Fair Value Disclosure	24,700,000				24,700,000
River Downs [Member]
Business Acquisition - Goodwill [Abstract]
Business Acquisition Purchase Price	45,200,000				45,200,000
Goodwill Acquired	35,800,000				35,800,000
River City [Member]
Income Statement [Abstract]
Pre-opening and development costs	0		300,000		100,000		9,700,000
Baton Rouge [Member]
Income Statement [Abstract]
Pre-opening and development costs	1,100,000		300,000		3,100,000		700,000
Sugarcane Bay [Member]
Income Statement [Abstract]
Pre-opening and development costs	0		100,000		200,000		1,200,000
Other [Member]
Income Statement [Abstract]
Pre-opening and development costs	$ 1,400,000		$ 500,000		$ 3,800,000		$ 600,000

[1] Included in the balance are benefit obligations related to both the executive deferred compensation plan and the directors’ health and medical plan.