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Noncontrolling Interest (Narrative) (Details)	Dec. 31, 2015	Dec. 31, 2013	Jan. 31, 2010
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage	50.00%
LVE
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	100.00%
Parent Company [Member]
Noncontrolling Interest [Line Items]
Subsidiaries, Ownership Percentage	100.00%	100.00%
Borgata
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	50.00%
Borgata
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage			50.00%

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- Definition

Subsidiaries, Ownership Percentage

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

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