Legal Proceedings - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 15, 2012
Other Litigation Cases
Loss Contingencies [Line Items]
Maximum exposure of litigation	$ 37,000,000
Damages awarded, accrual	5,000,000
Other Litigation Cases | Individual Counterparty
Loss Contingencies [Line Items]
Maximum exposure of litigation	150,000
Motion for summary judgment, hearing date	Sep. 24, 2012
San Antonio Marriott Rivercenter
Loss Contingencies [Line Items]
Loss contingency accrual	57,000,000
Escrow reserve	$ 25,000,000