Receivable - Marketing And Reservation Fees (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Receivable - marketing and reservation fees	$ 54,040		$ 54,040		$ 42,507
Depreciation and amortization	2,073	2,078	5,976	6,470
Interest expense	3,228	1,864	9,719	3,160
Cumulative Marketing Expenses In Excess Of Cumulative Marketing Fee Revenues [Member]
Receivable - marketing and reservation fees	21,700		21,700		17,000
Cumulative Reservation Expenses In Excess Of Cumulative Reservation Fee Revenues [Member]
Receivable - marketing and reservation fees	32,300		32,300		25,500
Marketing And Reservation Fees [Member]
Depreciation and amortization	3,400	3,000	10,000	9,100
Interest expense	$ 1,000	$ 300	$ 3,000	$ 500