v2.4.0.8

Long-Term Debt (Borgata Debt Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended				3 Months Ended	9 Months Ended	3 Months Ended			0 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended				3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012 Subsidiary, Borgata Bank Credit Facility	Sep. 30, 2013 Subsidiary, Borgata Letter of Credit	Sep. 30, 2013 Parent Company	Sep. 30, 2013 Parent Company	Sep. 30, 2013 Parent Company Bank Credit Facility	Dec. 31, 2012 Parent Company Bank Credit Facility	Sep. 30, 2013 Parent Company Letter of Credit	Jul. 24, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility	Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility	Dec. 31, 2012 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility	Jul. 24, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Minimum	Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Minimum	Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Maximum	Sep. 30, 2013 Revolving Credit Facility [Member] Parent Company Bank Credit Facility	Sep. 30, 2013 9.50% Senior Secured Notes Due 2015 Subsidiary, Borgata Senior Secured Notes	Sep. 30, 2013 9.50% Senior Secured Notes Due 2015 Parent Company Senior Secured Notes	Sep. 30, 2013 9.875% Senior Secured Notes Due 2018 Subsidiary, Borgata Senior Secured Notes	Jul. 24, 2013 One-month Eurodollar Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity												$ 60,000,000
Amount outstanding						3,200,000			1,443,400,000	1,466,635,000	8,500,000		16,300,000					290,000,000
Interest rate at period end					4.90%					3.70%			4.10%	4.10%
Remaining borrowing capacity									293,600,000				40,500,000
Debt instrument, interest rate, stated percentage																			9.50%		9.875%
Extinguishment of Debt, Amount																				39,800,000
Redemption price, percentage																				103.00%
Loss on early retirements of debt	(27,141,000)	0	(29,513,000)	0			(24,605,000)	(25,001,000)	20,800,000											2,000,000
Debt Instrument, Increase, Additional Borrowings													15,000,000
Debt Instrument, Basis Spread on Variable Rate																						1.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate															0.50%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage																0.50%	0.75%
Debt Instrument, Covenant Terms, Consolidated EBITDA Required															110,000,000
Financing Fees												$ 2,100,000

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Debt Instrument, Covenant Terms, Consolidated EBITDA Required

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Debt Instrument, Redemption Price, Percentage

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The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Increase of additional borrowings on existing and new debt instruments.

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Interest rate stated in the contractual debt agreement.

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Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount borrowed under the credit facility as of the balance sheet date.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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