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Collective Bargaining Agreement	9 Months Ended
Collective Bargaining Agreement	Sep. 30, 2011
Collective Bargaining Agreement [Abstract]
Concentration Risk, Labor Subject to Collective Bargaining Arrangements	Collective Bargaining Agreement Approximately 2,700 of our employees are represented by UNITE-HEREIU (Hotel Employees and Restaurant Employees International Union), Local 54. The collective bargaining agreement covering these employees expired on September 15, 2011. The Company is currently in negotiations with UNITE-HEREIU and expects to enter into a new collective bargaining agreement during the fourth quarter of 2011. The Company continues to negotiate in good faith and has contingency plans in place in the event of a labor dispute.