Litigation, Contractual Commitments and Contingent Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended				12 Months Ended	3 Months Ended	12 Months Ended			12 Months Ended
	Aug. 31, 2011	Dec. 31, 2009	Dec. 31, 2012 Casinos	Dec. 31, 2011	Dec. 31, 2008	Dec. 31, 2012 Minimum [Member]	Jun. 30, 2010 Hilton Matter [Member]	Dec. 31, 2012 Hilton Matter [Member] Minimum [Member]	Dec. 31, 2012 Hilton Matter [Member] Maximum [Member]	Feb. 21, 2012 Hilton Matter [Member] Hilton Hotels Corporation [Member]	Dec. 31, 2010 Hilton Matter [Member] Hilton Hotels Corporation [Member] Minimum [Member]	Dec. 31, 2010 Hilton Matter [Member] Hilton Hotels Corporation [Member] Maximum [Member]	Dec. 31, 2010 Class size and members [Member] Hilton Matter [Member] Hilton Hotels Corporation [Member]	Dec. 31, 2012 Indian Land [Member] Casinos
Contingencies and Commitments [Line Items]
Unrecognized tax refund					$ 32.2
Amount of sales tax assessment		27.4
Sales tax accruals on complementary meals			16.4
Number of casinos operated or managed			52											3
Aggregate monthly commitment for the minimum guaranteed payments to tribes			1.2
Aggregate non-cancelable purchase obligations			806.7
Court ordered compliance period	30 days
Bond Posted by Third Party										75.8
Estimated damages								80.0			80.0	280.0	50.0
Maximum potential exposure for Company, percent						30.00%			33.00%
Charge recorded against earnings							25.0
Self-insurance claims and reserves			$ 202.0	$ 209.2