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Summary of Estimated Cost of Promotional Allowances (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Promotional Allowances [Line Items]
Estimated costs of promotional allowances primarily included in casino expense	$ 47,592	$ 44,378
Rooms
Promotional Allowances [Line Items]
Estimated costs of promotional allowances primarily included in casino expense	12,754	13,056
Food and beverage
Promotional Allowances [Line Items]
Estimated costs of promotional allowances primarily included in casino expense	31,042	27,764
Entertainment, retail and other
Promotional Allowances [Line Items]
Estimated costs of promotional allowances primarily included in casino expense	$ 3,796	$ 3,558

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Estimated costs of promotional allowances primarily included in Casino Expense.

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