Deferred Revenue Components Of Deferred Revenue (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Deferred revenue	$ 76,949	$ 68,825
Loyalty Programs [Member]
Deferred revenue	71,030	64,636
Initial, Relicensing And Franchise Fees [Member]
Deferred revenue	4,269	3,198
Procurement Service Fees [Member]
Deferred revenue	1,146	957
Other [Member]
Deferred revenue	$ 504	$ 34