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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | $ 63,072 |  | $ 353,743 |  | $ 389,863 |  | $ 1,009,686 |
GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 14,257 |  | 218,700 |  | 322,261 |  | 808,567 |
GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 14,257 |  | 218,700 |  | 322,261 |  | 808,567 |
GES | Intersegment Eliminations |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | (284) |  | (5,724) |  | (3,258) |  | (14,731) |
Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 48,815 |  | 135,043 |  | 67,602 |  | 201,119 |
Pursuit | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 48,815 |  | 135,043 |  | 67,602 |  | 201,119 |
Pursuit | Intersegment Eliminations |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | (144) |  | (671) |  | (261) |  | (1,355) |
North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 11,767 |  | 185,124 |  | 273,423 |  | 666,825 |
EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 2,774 |  | 39,300 |  | 52,096 |  | 156,473 |
Services Transferred Over Time | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 12,296 |  | 192,855 |  | 289,788 |  | 709,832 |
Services Transferred Over Time | GES | Intersegment Eliminations |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | (284) |  | (5,724) |  | (3,258) |  | (14,731) |
Services Transferred Over Time | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 31,406 |  | 98,846 |  | 45,595 |  | 148,239 |
Services Transferred Over Time | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 10,203 |  | 172,224 |  | 252,021 |  | 616,176 |
Services Transferred Over Time | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 2,377 |  | 26,355 |  | 41,025 |  | 108,387 |
Products Transferred Over Time | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 247 | [1] | 12,863 | [2] | 13,442 | [1] | 44,196 | [2]
Products Transferred Over Time | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 232 | [1] | 10,558 | [2] | 11,035 | [1] | 33,601 | [2]
Products Transferred Over Time | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 15 | [1] | 2,305 | [2] | 2,407 | [1] | 10,595 | [2]
Products Transferred at a Point in Time | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,714 |  | 12,982 |  | 19,031 |  | 54,539 |
Products Transferred at a Point in Time | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 17,409 |  | 36,197 |  | 22,007 |  | 52,880 |
Products Transferred at a Point in Time | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,332 |  | 2,342 |  | 10,367 |  | 17,048 |
Products Transferred at a Point in Time | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 382 |  | 10,640 |  | 8,664 |  | 37,491 |
Core Services | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 9,990 |  | 169,261 |  | 258,764 |  | 618,200 |
Core Services | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 7,987 |  | 148,722 |  | 225,414 |  | 531,485 |
Core Services | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 2,003 |  | 20,539 |  | 33,350 |  | 86,715 |
Audio Visual | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 893 |  | 23,144 |  | 22,210 |  | 76,494 |
Audio Visual | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 933 |  | 18,742 |  | 18,661 |  | 61,323 |
Audio Visual | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | (40) |  | 4,402 |  | 3,549 |  | 15,171 |
Event Technology | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,697 |  | 6,174 |  | 12,072 |  | 29,869 |
Event Technology | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,283 |  | 4,760 |  | 7,946 |  | 23,368 |
Event Technology | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 414 |  | 1,414 |  | 4,126 |  | 6,501 |
Total Services | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 12,296 |  | 192,855 |  | 289,788 |  | 709,832 |
Total Services | GES | Intersegment Eliminations |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | (284) |  | (5,724) |  | (3,258) |  | (14,731) |
Total Services | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 31,406 |  | 98,846 |  | 45,595 |  | 148,239 |
Total Services | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 10,203 |  | 172,224 |  | 252,021 |  | 616,176 |
Total Services | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 2,377 |  | 26,355 |  | 41,025 |  | 108,387 |
Core Products | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,961 |  | 25,845 |  | 32,473 |  | 98,735 |
Core Products | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,564 |  | 12,900 |  | 21,402 |  | 50,649 |
Core Products | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 397 |  | 12,945 |  | 11,071 |  | 48,086 |
Exhibitions | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 7,213 |  | 108,729 |  | 242,672 |  | 468,295 |
Exhibitions | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 4,890 |  | 79,589 |  | 203,671 |  | 349,106 |
Exhibitions | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 2,323 |  | 29,140 |  | 39,001 |  | 119,189 |
Conferences | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,466 |  | 65,475 |  | 47,244 |  | 212,805 |
Conferences | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,099 |  | 60,537 |  | 39,626 |  | 195,635 |
Conferences | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 367 |  | 4,938 |  | 7,618 |  | 17,170 |
Corporate Events | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 4,604 |  | 44,390 |  | 29,320 |  | 121,690 |
Corporate Events | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 4,537 |  | 39,370 |  | 24,012 |  | 102,525 |
Corporate Events | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 67 |  | 5,020 |  | 5,308 |  | 19,165 |
Consumer Events | GES |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,258 |  | 5,830 |  | 6,283 |  | 20,508 |
Consumer Events | North America | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,241 |  | 5,628 |  | 6,114 |  | 19,559 |
Consumer Events | EMEA | GES | Operating Segments |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 17 |  | 202 |  | 169 |  | 949 |
Accommodations | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 18,021 |  | 41,292 |  | 23,994 |  | 56,636 |
Admissions | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 12,229 |  | 49,353 |  | 17,865 |  | 76,034 |
Transportation | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 445 |  | 6,868 |  | 2,513 |  | 12,817 |
Travel Planning | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 855 |  | 2,004 |  | 1,484 |  | 4,107 |
Food and Beverage | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 6,783 |  | 19,333 |  | 9,047 |  | 28,903 |
Retail Operations | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 10,626 |  | 16,864 |  | 12,960 |  | 23,977 |
Products |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 19,370 |  | 62,042 |  | 54,480 |  | 151,615 |
Products | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 17,409 |  | 36,197 |  | 22,007 |  | 52,880 |
Banff Jasper Collection | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 26,395 |  | 75,337 |  | 39,234 |  | 116,433 |
Alaska Collection | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 5,436 |  | 26,909 |  | 6,167 |  | 39,287 |
Glacier Park Collection | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | 14,929 |  | 28,098 |  | 16,813 |  | 36,296 |
FlyOver | Pursuit |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |
Total revenue | $ 2,055 |  | $ 4,699 |  | $ 5,388 |  | $ 9,103 |
[1] | GES’ graphics product revenue is earned over time over the duration of the event as it is considered a part of the single performance obligation satisfied over time.
[2] | 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.

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