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, 2023	Dec. 31, 2022	Dec. 31, 2021
Net periodic benefit cost:
Net periodic benefit cost	$ 282	$ 150	$ 295
Postretirement Benefit Plans
Net periodic benefit cost:
Service cost	21	34
Interest cost	347	179
Domestic Plans | Pension Plans
Net periodic benefit cost:
Interest cost	845	478	419
Expected return on plan assets	(126)	93	(47)
Amortization of prior service cost (credit)	(38)	0	0
Recognized net actuarial loss (gain)	291	444	623
Net periodic benefit cost	972	1,015	995
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	198	(3,409)	(883)
Prior service cost (credit)	38	(518)	0
Reversal of amortization item:
Net actuarial loss	(291)	(444)	(623)
Total recognized in other comprehensive income	(55)	(4,371)	(1,506)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	917	(3,356)	(511)
Domestic Plans | Postretirement Benefit Plans
Net periodic benefit cost:
Service cost	21	34	70
Interest cost	347	179	181
Amortization of prior service cost (credit)	114	89	(6)
Recognized net actuarial loss (gain)	(200)	(152)	115
Settlement income	0	0	(65)
Net periodic benefit cost	282	150	360
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	125	(2,540)	(642)
Prior service cost (credit)	0	509	0
Reversal of amortization item:
Net actuarial loss	200	152	(115)
Prior service credit	(114)	(89)	6
Settlement income	0	0	65
Total recognized in other comprehensive income	211	(1,968)	(686)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	493	(1,818)	(391)
Foreign Pension Plans
Net periodic benefit cost:
Service cost	176	280	457
Interest cost	391	361	339
Expected return on plan assets	(345)	(393)	(508)
Recognized net actuarial loss (gain)	105	105	171
Settlement income	0	593	0
Net periodic benefit cost	327	946	459
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss):
Net actuarial (gain) loss	11	(724)	(375)
Reversal of amortization item:
Net actuarial loss	(105)	(105)	(171)
Settlement income	0	(593)	0
Total recognized in other comprehensive income	(94)	(829)	(546)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$ 233	$ 117	$ (87)