XML 70 R72.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill and Other Intangible Assets - Additional Information (Details) (USD $)
12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Marketing & Events U.S.
Dec. 31, 2013
United Kingdom (Melville GES)
Dec. 31, 2013
GES Canada
Dec. 31, 2013
Brewster
Dec. 31, 2013
Alaska Denali Travel
Dec. 31, 2013
Travel & Recreation Group
Dec. 31, 2013
Marketing & Events U.S.
Dec. 31, 2013
Marketing & Events International
Dec. 31, 2013
Customer Contracts
Segment Reporting Information [Line Items]                        
Goodwill, Impairment Loss $ 4,461,000               $ 4,461,000 $ 0 $ 0  
Asset Impairment Charges, Non-Controlling Interest Amount                 892,000      
Percentage of estimated fair values       139.00% 58.00% 59.00% 54.00% 15.00%        
Cumulative goodwill impairment losses 229,700,000                      
Intangible asset amortization expense $ 1,300,000 $ 693,000 $ 772,000                  
Finite-Lived Intangible Asset, Useful Life 1 year 9 months 18 days                     5 years 2 months 12 days