Goodwill and Other Intangible Assets - Summary of Goodwill Balances by Component and Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Changes in the carrying amount of goodwill
Balance at December 31, 2013	$ 129,543
Foreign currency translation adjustments	(2,113)
Balance at March 31, 2014	127,430
Marketing & Events U.S.
Changes in the carrying amount of goodwill
Balance at December 31, 2013	62,686
Foreign currency translation adjustments	0
Balance at March 31, 2014	62,686
Marketing & Events International
Changes in the carrying amount of goodwill
Balance at December 31, 2013	22,611
Foreign currency translation adjustments	(242)
Balance at March 31, 2014	22,369
Travel & Recreation Group
Changes in the carrying amount of goodwill
Balance at December 31, 2013	44,246
Foreign currency translation adjustments	(1,871)
Balance at March 31, 2014	$ 42,375