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Pension and Postretirement Benefits - Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Loss) of Viad's Postretirement Benefit Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Postretirement Benefit Plans |  |  |
Net periodic benefit cost: |  |  |
Service cost | $ 64 | $ 80 |
Interest cost | 458 | 449 |
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): |  |  |
Net actuarial gain (loss) | (1,117) | 170 |
Domestic Plans | Pension Plans |  |  |
Net periodic benefit cost: |  |  |
Service cost | 61 | 64 | $ 64
Interest cost | 861 | 780 | 803
Expected return on plan assets | (99) | (193) | (176)
Recognized net actuarial loss | 403 | 494 | 433
Net periodic benefit cost | 1,226 | 1,145 | 1,124
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): |  |  |
Net actuarial gain (loss) | 1,305 | (76) | 114
Reversal of amortization item: |  |  |
Net actuarial loss | (403) | (494) | (433)
Total recognized in other comprehensive income (loss) | 902 | (570) | (319)
Total recognized in net periodic benefit cost and other comprehensive income (loss) | 2,128 | 575 | 805
Domestic Plans | Postretirement Benefit Plans |  |  |
Net periodic benefit cost: |  |  |
Service cost | 64 | 80 | 92
Interest cost | 458 | 449 | 413
Amortization of prior service credit | (189) | (205) | (431)
Recognized net actuarial loss | 112 | 405 | 164
Net periodic benefit cost | 445 | 729 | 238
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): |  |  |
Net actuarial gain (loss) | (1,117) | 170 | 237
Prior service credit |  |  | 816
Reversal of amortization item: |  |  |
Net actuarial loss | (112) | (405) | (164)
Prior service credit | 189 | 205 | 431
Total recognized in other comprehensive income (loss) | (1,040) | (30) | 1,320
Total recognized in net periodic benefit cost and other comprehensive income (loss) | (595) | 699 | 1,558
Foreign Pension Plans |  |  |
Net periodic benefit cost: |  |  |
Service cost | 405 | 552 | 530
Interest cost | 397 | 381 | 492
Expected return on plan assets | (487) | (505) | (602)
Recognized net actuarial loss | 127 | 139 | 155
Settlement |  |  | 777
Net periodic benefit cost | 442 | 567 | 1,352
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss): |  |  |
Net actuarial gain (loss) | 605 | (238) | (106)
Reversal of amortization item: |  |  |
Net actuarial loss | (127) | (139) | (155)
Total recognized in other comprehensive income (loss) | 478 | (377) | (261)
Total recognized in net periodic benefit cost and other comprehensive income (loss) | $ 920 | $ 190 | $ 1,091

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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