Revenue and Related Contract Costs and Contract Liabilities - Disaggregate GES and Pursuit Revenue by Major Product Line Timing of Revenue Recognition and Markets Served (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation Of Revenue [Line Items]
Total revenue		$ 320,311	$ 319,203	$ 581,102	$ 496,563
GES
Disaggregation Of Revenue [Line Items]
Total revenue		231,837	241,604	459,965	395,180
GES | Intersegment Eliminations
Disaggregation Of Revenue [Line Items]
Total revenue		(3,065)	(2,421)	(4,796)	(3,492)
Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		88,474	77,599	121,137	101,383
Pursuit | Operating Segments
Disaggregation Of Revenue [Line Items]
Total revenue		88,474	77,599	121,137	101,383
North America | GES
Disaggregation Of Revenue [Line Items]
Total revenue		177,408	189,670	358,247	318,697
EMEA | GES
Disaggregation Of Revenue [Line Items]
Total revenue		62,644	58,534	112,181	84,347
Services Transferred Over Time | GES
Disaggregation Of Revenue [Line Items]
Total revenue		196,668	197,464	389,645	329,947
Services Transferred Over Time | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		65,671	56,668	90,834	75,322
Products Transferred Over Time | GES
Disaggregation Of Revenue [Line Items]
Total revenue	[1]	16,038	16,025	28,979	23,963
Products Transferred at a Point in Time | GES
Disaggregation Of Revenue [Line Items]
Total revenue		19,131	28,115	41,341	41,270
Products Transferred at a Point in Time | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		22,803	20,931	30,303	26,061
Ticket revenue [Member] | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		36,543	29,337	50,804	38,539
Rooms revenue [Member] | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		22,106	20,559	29,696	27,462
Other | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		3,333	3,017	4,700	4,387
Transportation | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		3,689	3,755	5,634	4,934
Total Services | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		65,671	56,668	90,834	75,322
Food and Beverage | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		13,628	12,171	19,503	16,264
Retail Operations | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		9,175	8,760	10,800	9,797
Total Products Revenue
Disaggregation Of Revenue [Line Items]
Total revenue		57,972	65,071	100,623	91,294
Total Products Revenue | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		22,803	20,931	30,303	26,061
Banff Jasper Collection | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		46,905	38,962	64,519	53,292
Alaska Collection | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		12,701	13,319	13,154	13,816
Spiro | GES
Disaggregation Of Revenue [Line Items]
Total revenue		80,368	89,425	140,730	132,241
GES-Exhibitions | GES
Disaggregation Of Revenue [Line Items]
Total revenue		154,534	154,600	324,031	266,431
GES intersegment eliminations | GES
Disaggregation Of Revenue [Line Items]
Total revenue		(8,215)	(6,600)	(10,463)	(7,864)
Glacier Park Collection | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		13,730	13,581	15,185	14,590
FlyOver | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		7,020	5,870	12,875	10,009
Sky Lagoon | Pursuit
Disaggregation Of Revenue [Line Items]
Total revenue		$ 8,118	$ 5,867	$ 15,404	$ 9,676

[1] GES’ graphics product revenue is earned over time over the duration of an event as it is considered a part of the single performance obligation satisfied over time.