Deferred Revenue Components Of Deferred Revenue (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Deferred Revenue [Line Items]
Deferred revenue	$ 73,908	$ 66,382
Loyalty programs [Member]
Deferred Revenue [Line Items]
Deferred revenue	61,092	57,757
Initial, relicensing and franchise fees [Member]
Deferred Revenue [Line Items]
Deferred revenue	4,973	6,439
Procurement service fees [Member]
Deferred Revenue [Line Items]
Deferred revenue	2,711	1,936
Other [Member]
Deferred Revenue [Line Items]
Deferred revenue	$ 5,132	$ 250