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, 2022	Dec. 31, 2021	Dec. 31, 2020
Net periodic benefit cost:
Expected return on plan assets [Extensible Enumeration]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Amortization of prior service cost (credit) [Extensible Enumeration]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Net periodic benefit cost	$ 150	$ 295	$ 219
Reversal of amortization item:
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Postretirement Benefit Plans
Net periodic benefit cost:
Service cost	$ 34	$ 70
Interest cost	179	180
Domestic Plans | Pension Plans
Net periodic benefit cost:
Service cost	0	0	$ 0
Interest cost	478	419	653
Expected return on plan assets	93	(47)	(145)
Recognized net actuarial loss (gain)	444	623	526
Net periodic benefit cost	1,015	995	1,034
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	(3,409)	(883)	1,587
Prior service cost (credit)	(518)	0	0
Reversal of amortization item:
Net actuarial loss	(444)	(623)	(526)
Total recognized in other comprehensive income	(4,371)	(1,506)	1,061
Total recognized in net periodic benefit cost and other comprehensive income (loss)	(3,356)	(511)	2,095
Domestic Plans | Postretirement Benefit Plans
Net periodic benefit cost:
Service cost	34	70	51
Interest cost	179	181	296
Amortization of prior service cost (credit)	89	(6)	(146)
Recognized net actuarial loss (gain)	(152)	115	18
Settlement	0	(65)	0
Net periodic benefit cost	150	360	219
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	(2,540)	(642)	688
Prior service cost (credit)	509	0	0
Reversal of amortization item:
Net actuarial loss	152	(115)	(18)
Prior service credit	(89)	6	146
Settlement income	0	65	0
Total recognized in other comprehensive income	(1,968)	(686)	816
Total recognized in net periodic benefit cost and other comprehensive income (loss)	(1,818)	(391)	1,035
Foreign Pension Plans
Net periodic benefit cost:
Service cost	280	457	444
Interest cost	361	339	365
Expected return on plan assets	(393)	(508)	(530)
Recognized net actuarial loss (gain)	105	171	162
Settlement	593	0	0
Net periodic benefit cost	946	459	441
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	(724)	(375)	368
Reversal of amortization item:
Net actuarial loss	(105)	(171)	(162)
Settlement income	(593)	0	0
Total recognized in other comprehensive income	(829)	(546)	206
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$ 117	$ (87)	$ 647