Goodwill and Other Intangible Assets - Goodwill by Reporting Unit and Segment (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Goodwill by reporting unit and segment
Goodwill	$ 127,430	$ 129,543
Marketing & Events U.S.
Goodwill by reporting unit and segment
Goodwill	62,686	62,686
Marketing & Events International
Goodwill by reporting unit and segment
Goodwill	22,369	22,611
Marketing & Events International | United Kingdom (Melville GES)
Goodwill by reporting unit and segment
Goodwill	14,139	14,049
Marketing & Events International | GES Canada
Goodwill by reporting unit and segment
Goodwill	8,230	8,562
Marketing and Events Group
Goodwill by reporting unit and segment
Goodwill	85,055	85,297
Travel & Recreation Group
Goodwill by reporting unit and segment
Goodwill	42,375	44,246
Travel & Recreation Group | Brewster
Goodwill by reporting unit and segment
Goodwill	39,191	41,062
Travel & Recreation Group | Alaska Denali Travel
Goodwill by reporting unit and segment
Goodwill	$ 3,184	$ 3,184