Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenues:
Revenues		$ 580,025	$ 572,839
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1]	172,400	169,700
Other costs:
Depreciation and amortization		(54,096)	(67,831)
Pre-opening, development and other costs		(5,329)	(1,567)
Non-cash share-based compensation expense		(4,400)	(4,100)
Write-downs, reserves and recoveries, net		(2,890)	(3,144)
Interest expense, net		(59,793)	(61,083)
Loss from equity method investment		0	(83)
Income tax expense		(4,998)	(4,832)
Income from continuing operations		40,893	27,079
Capital expenditures		21,884	21,118
Midwest
Revenues:
Revenues	[2]	328,600	313,900
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1],[2]	107,500	100,800
Other costs:
Capital expenditures	[2]	9,200	10,500
South
Revenues:
Revenues	[2]	193,700	203,700
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1],[2]	64,600	67,500
Other costs:
Capital expenditures	[2]	7,100	7,200
West
Revenues:
Revenues	[2]	56,500	53,700
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1],[2]	20,900	20,700
Other costs:
Capital expenditures	[2]	2,600	1,300
Operating Segments
Revenues:
Revenues		578,800	571,300
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1]	193,000	189,000
Corporate and Other
Revenues:
Revenues	[3]	1,200	1,500
Adjusted EBITDA [Abstract]
Adjusted EBITDA	[1],[3]	(20,600)	(19,300)
Other costs:
Capital expenditures		$ 3,000	$ 2,100

[1] We define Consolidated Adjusted EBITDA as earnings before interest income and expense, income taxes, depreciation, amortization, pre-opening, development and other costs, non-cash share-based compensation, asset impairment costs, write-downs, reserves, recoveries, corporate-level litigation settlement costs, gain (loss) on sale of certain assets, loss on early extinguishment of debt, gain (loss) on sale of equity security investments, income (loss) from equity method investments, non-controlling interest and discontinued operations. We define Adjusted EBITDA for each reportable segment as earnings before interest income and expense, income taxes, depreciation, amortization, pre-opening, development and other costs, non-cash share-based compensation, asset impairment costs, write-downs, reserves, recoveries, inter-company management fees, gain (loss) on sale of certain assets, gain (loss) on early extinguishment of debt, gain (loss) on sale of discontinued operations, and discontinued operations. We define Adjusted EBITDA margin as Adjusted EBITDA for the segment divided by segment revenues. We use Consolidated Adjusted EBITDA and Adjusted EBITDA for each segment to compare operating results among our properties and between accounting periods. Consolidated Adjusted EBITDA and Adjusted EBITDA have economic substance because they are used by management as measures to analyze the performance of our business and are especially relevant in evaluating large, long-lived casino-hotel projects because they provide a perspective on the current effects of operating decisions separated from the substantial non-operational depreciation charges and financing costs of such projects. We eliminate the results from discontinued operations at the time they are deemed discontinued. We also review pre-opening, development and other costs separately, as such expenses are also included in total project costs when assessing budgets and project returns, and because such costs relate to anticipated future revenues and income. We believe that Consolidated Adjusted EBITDA and Adjusted EBITDA are useful measures for investors because they are indicators of the performance of ongoing business operations. These calculations are commonly used as a basis for investors, analysts and credit rating agencies to evaluate and compare operating performance and value of companies within our industry. In addition, our credit agreement and bond indentures require compliance with financial measures similar to Consolidated Adjusted EBITDA. Consolidated Adjusted EBITDA should not be considered as an alternative to operating income as an indicator of performance, or as an alternative to any other measure provided in accordance with GAAP. Our calculations of Adjusted EBITDA and Consolidated Adjusted EBITDA may be different from the calculation methods used by other companies and, therefore, comparability may be limited.

[2] See Note 1, “Organization and Summary of Significant Accounting Policies,” for listing of properties included in each segment.

[3] Corporate and other includes revenues from Retama Park Racetrack (which we manage) and the Heartland Poker Tour. Corporate expenses represent payroll, professional fees, travel expenses and other general and administrative expenses not directly related to our casino and hotel operations. Corporate expenses that are directly attributable to a property are allocated to each applicable property. All other costs incurred relating to the management and consulting services provided by corporate headquarters to the properties are allocated to those properties based on their respective share of the monthly consolidated net revenues in the form of a management fee. The corporate management fee is excluded in the calculation of segment Adjusted EBITDA and is completely eliminated in any consolidated financial results.