v2.4.0.6
Consolidation of Certain Interests (Measurement Period Adjustments Not Recorded) (Details) (USD $)
12 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2010
Borgata
Dec. 31, 2010
Borgata
Condensed Financial Statements, Captions [Line Items]          
Maintenance and utilities $ 155,016,000 $ 153,512,000 $ 140,722,000 $ 49,913,000 $ 141,000
Depreciation and amortization 214,332,000 195,343,000 199,275,000 52,886,000 2,221,000
Other operating items, net 6,650,000 8,007,000 4,713,000 (8,000) (61,000)
Total operating costs and expenses 3,342,301,000 2,103,134,000 1,959,686,000 496,740,000 2,301,000
Interest expense, net of amounts capitalized 290,004,000 250,731,000 180,558,000 45,139,000 3,458,000
Total other expense, net 288,972,000 239,382,000 168,873,000 45,139,000 3,458,000
Income (loss) before income taxes $ (1,143,847,000) $ (6,278,000) $ 20,486,000   $ (1,157,000)