Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Other Intangible Assets - Summary of Goodwill Balances by Component and Segment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Sep. 16, 2014	Oct. 07, 2014	Nov. 24, 2014
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance	$ 129,543us-gaap_Goodwill	$ 137,820us-gaap_Goodwill
Goodwill impairment charge		(4,461)us-gaap_GoodwillImpairmentLoss
Business acquisitions		158us-gaap_GoodwillAcquiredDuringPeriod
Foreign currency translation adjustments	(6,613)us-gaap_GoodwillTranslationAdjustments	(3,974)us-gaap_GoodwillTranslationAdjustments
Goodwill Ending balance	194,197us-gaap_Goodwill	129,543us-gaap_Goodwill
Marketing & Events U.S.
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance	62,686	62,686
Goodwill impairment charge		0
Business acquisitions		0
Foreign currency translation adjustments	0	0
Goodwill Ending balance	110,618	62,686
Marketing & Events International
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance	22,611	23,054
Goodwill impairment charge		0
Business acquisitions		158
Foreign currency translation adjustments	(2,457)	(601)
Goodwill Ending balance	42,221	22,611
Travel & Recreation Group
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance	44,246	52,080
Goodwill impairment charge		(4,461)
Business acquisitions		0
Foreign currency translation adjustments	(4,156)	(3,373)
Goodwill Ending balance	41,358	44,246
Blitz Communication Group Limited
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance			13,504
Business acquisitions	13,504
Goodwill Ending balance			13,504
Blitz Communication Group Limited \| Marketing & Events U.S.
Changes in the carrying amount of goodwill
Business acquisitions	0
Blitz Communication Group Limited \| Marketing & Events International
Changes in the carrying amount of goodwill
Business acquisitions	13,504
Blitz Communication Group Limited \| Travel & Recreation Group
Changes in the carrying amount of goodwill
Business acquisitions	0
West Glacier Motel and Cabins
Changes in the carrying amount of goodwill
Business acquisitions	1,268
West Glacier Motel and Cabins \| Marketing & Events U.S.
Changes in the carrying amount of goodwill
Business acquisitions	0
West Glacier Motel and Cabins \| Marketing & Events International
Changes in the carrying amount of goodwill
Business acquisitions	0
West Glacier Motel and Cabins \| Travel & Recreation Group
Changes in the carrying amount of goodwill
Business acquisitions	1,268
onPeak LLC
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance				27,406
Business acquisitions	27,406
Goodwill Ending balance				27,406
onPeak LLC \| Marketing & Events U.S.
Changes in the carrying amount of goodwill
Business acquisitions	27,406
onPeak LLC \| Marketing & Events International
Changes in the carrying amount of goodwill
Business acquisitions	0
onPeak LLC \| Travel & Recreation Group
Changes in the carrying amount of goodwill
Business acquisitions	0
Travel Planners, Inc
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance				20,526
Business acquisitions	20,526
Goodwill Ending balance				20,526
Travel Planners, Inc \| Marketing & Events U.S.
Changes in the carrying amount of goodwill
Business acquisitions	20,526
Travel Planners, Inc \| Marketing & Events International
Changes in the carrying amount of goodwill
Business acquisitions	0
Travel Planners, Inc \| Travel & Recreation Group
Changes in the carrying amount of goodwill
Business acquisitions	0
N200 Limited and Affiliates
Changes in the carrying amount of goodwill
Goodwill, Beginning Balance					8,563
Business acquisitions	8,563
Goodwill Ending balance					8,563
N200 Limited and Affiliates \| Marketing & Events U.S.
Changes in the carrying amount of goodwill
Business acquisitions	0
N200 Limited and Affiliates \| Marketing & Events International
Changes in the carrying amount of goodwill
Business acquisitions	8,563
N200 Limited and Affiliates \| Travel & Recreation Group
Changes in the carrying amount of goodwill
Business acquisitions	$ 0