Deferred Revenue Components Of Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Deferred Revenue [Line Items]
Deferred revenue	$ 68,439	$ 66,382
Loyalty programs [Member]
Deferred Revenue [Line Items]
Deferred revenue	59,270	57,757
Initial, relicensing and franchise fees [Member]
Deferred Revenue [Line Items]
Deferred revenue	5,937	6,439
Procurement service fees [Member]
Deferred Revenue [Line Items]
Deferred revenue	2,446	1,936
Other [Member]
Deferred Revenue [Line Items]
Deferred revenue	$ 786	$ 250