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Pension and Postretirement Benefits - Components of net periodic benefit cost and other amounts recognized in other comprehensive income of Viad's postretirement benefit plans (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Pension Plans
        
Net periodic benefit cost of pension and post retirement benefit plans        
Service cost $ 22 $ 30 $ 45 $ 60
Interest cost 266 261 546 522
Expected return on plan assets (117) (100) (220) (200)
Amortization of prior service credit 0 0 0 0
Recognized net actuarial loss 85 149 204 298
Net periodic benefit cost 256 340 575 680
US Postretirement Benefit Plans
        
Net periodic benefit cost of pension and post retirement benefit plans        
Service cost 60 46 94 92
Interest cost 201 173 377 346
Expected return on plan assets 0 0 0 0
Amortization of prior service credit (148) (225) (296) (450)
Recognized net actuarial loss 108 141 209 282
Net periodic benefit cost 221 135 384 270
Foreign Pension Plans
        
Net periodic benefit cost of pension and post retirement benefit plans        
Service cost 105 134 209 271
Interest cost 160 175 320 356
Expected return on plan assets (162) (175) (323) (355)
Amortization of prior service credit 0 0 0 0
Recognized net actuarial loss 2 10 5 20
Net periodic benefit cost $ 105 $ 144 $ 211 $ 292