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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Accumulated Impairment Loss on Goodwill	$ 229.7	$ 229.7
Services
Segment Reporting Information [Line Items]
Intangible asset amortization expense	$ 11.0	$ 12.4	$ 9.2
GES U.S.
Segment Reporting Information [Line Items]
Percentage of estimated fair values	148.00%
FlyOver Canada
Segment Reporting Information [Line Items]
Percentage of estimated fair values	51.00%
GES EMEA | GES International
Segment Reporting Information [Line Items]
Percentage of estimated fair values	243.00%
GES Canada | GES International
Segment Reporting Information [Line Items]
Percentage of estimated fair values	282.00%
Banff Jasper Collection | Pursuit
Segment Reporting Information [Line Items]
Percentage of estimated fair values	141.00%
Alaska Collection | Pursuit
Segment Reporting Information [Line Items]
Percentage of estimated fair values	52.00%
Glacier Park Collection | Pursuit
Segment Reporting Information [Line Items]
Percentage of estimated fair values	20.00%

X

- Definition

Amount of expense for allocation of cost of intangible asset over its useful life directly used in production of good and rendering of service.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(2))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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