Income (Loss) Per Share - Reconciliation of Basic and Diluted Income (loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net income (loss) attributable to Viad (diluted)		$ 13,824	$ 23,490	$ (3,953)	$ 14,103
Less: Allocation to non-vested shares		(102)	(222)		(139)
Adjustment to the redemption value of redeemable noncontrolling interest		(179)	(52)	(266)	(90)
Net income (loss) allocated to Viad common stockholders (basic)		$ 13,543	$ 23,216	$ (4,219)	$ 13,874
Denominator:
Basic weighted-average outstanding common shares		20,143	20,209	20,110	20,208
Additional dilutive shares related to share-based compensation		123	227		238
Diluted weighted-average outstanding shares		20,266	20,436	20,110	20,446
Basic income (loss) attributable to Viad common stockholders		$ 0.67	$ 1.15	$ (0.21)	$ 0.69
Diluted income (loss) attributable to Viad common stockholders	[1]	$ 0.67	$ 1.15	$ (0.21)	$ 0.69

[1] ^{Diluted income (loss) per share amount cannot exceed basic income (loss) per share.}