Noncontrolling Interest (Changes in Noncontrolling Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance, January 1, 2013	$ 50	$ 180,450	$ 163,336
Capital contributions	0	30	0
Attributable net income (loss)	0	11,403	(28,290)
Comprehensive income	0	0	0
Deconsolidation of Borgata on September 30, 2014		(191,833)	45,404
Balance, December 31, 2015	50	50	180,450
Borgata
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance, January 1, 2013	0	180,430	208,277
Capital contributions	0	0	0
Attributable net income (loss)	0	11,403	(27,847)
Comprehensive income	0	0	0
Deconsolidation of Borgata on September 30, 2014		(191,833)	0
Balance, December 31, 2015	0	0	180,430
LVE
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance, January 1, 2013	0	0	(44,961)
Attributable net income (loss)	0	0	(443)
Comprehensive income	0	0	0
Deconsolidation of Borgata on September 30, 2014		0	45,404
Balance, December 31, 2015	0	0	0
Other Member [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance, January 1, 2013	50	20	20
Capital contributions	0	30	0
Attributable net income (loss)	0	0	0
Comprehensive income	0	0	0
Deconsolidation of Borgata on September 30, 2014		0	0
Balance, December 31, 2015	50	50	20
Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Capital contributions	$ 0	$ 0	$ 0

Attributable Net Income (Loss)

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Capital investment attributable to noncontrolling interest

+ References

No definition available.

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 27
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 7

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.

+ References

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- Definition

Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569643-111683

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569616-111683

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