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Goodwill and Other Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Marketing & Events U.S [Member]
Dec. 31, 2011
Marketing & Events U.S [Member]
Jun. 30, 2012
Marketing & Events International [Member]
Jun. 30, 2012
Travel & Recreation Group [Member]
Changes in the carrying amount of goodwill          
Goodwill, Beginning Balance $ 133,694 $ 62,686 $ 62,686 $ 22,198 $ 48,810
Business acquisitions 1,890       1,890
Foreign currency translation adjustments 309     150 159
Goodwill Ending balance $ 135,893 $ 62,686 $ 62,686 $ 22,348 $ 50,859