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Deconsolidation of Borgata Equity Investment Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Non-operating expenses	$ 56,558	$ 75,420	$ 170,624	$ 226,219
Income taxes benefit (provision)	3,710	1,961	(6,489)	12,050
Subsidiary, Borgata
Net revenues	237,461	209,946	611,213	559,064
Operating expenses	175,248	166,509	495,473	481,709
Operating income	62,213	43,437	115,740	77,355
Non-operating expenses	25,363	20,460	58,909	56,280
Net income	$ (36,850)	$ (22,977)	$ (56,831)	$ (21,075)

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