Deferred Revenue Components Of Deferred Revenue (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Deferred revenue	$ 64,422	$ 68,825
Loyalty Programs [Member]
Deferred revenue	58,907	64,636
Initial, Relicensing And Franchise Fees [Member]
Deferred revenue	3,998	3,198
Procurement Service Fees [Member]
Deferred revenue	703	957
Other [Member]
Deferred revenue	$ 814	$ 34