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Segment Information (Reconciliation of Capital Expenditures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	$ 128,305	$ 133,436	$ 137,607
Change in Accrued Property Additions	2,865	15,938	6,913
Cash-Based Capital Expenditures	131,170	149,374	144,520
Las Vegas Locals
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	41,772	31,653	30,861
Downtown Las Vegas
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	13,000	9,917	5,505
Midwest and South
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	42,130	55,273	39,589
Peninsula
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	18,757	33,756	27,094
Borgata (1)
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	0	11,623	22,357
Reportable Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	115,659	142,222	125,406
Corporate
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	12,646	(8,786)	12,173
Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital Expenditures	$ 0	$ 0	$ 28

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Capital Expenditures

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- Definition

Cash-Based Capital Expenditures

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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