CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue:
Exhibition and event services	$ 967,352	$ 881,137	$ 799,752
Exhibits and environments	165,745	170,469	177,126
Pursuit services	173,868	153,364	112,170
Total revenue	1,306,965	1,204,970	1,089,048
Costs and expenses:
Costs of services	1,050,547	954,667	868,369
Costs of products sold	161,992	165,118	166,095
Business interruption gain	(2,692)
Corporate activities	12,877	10,322	9,720
Interest income	(319)	(1,165)	(658)
Interest expense	8,304	5,898	4,535
Restructuring charges	1,004	5,183	2,956
Impairment charges (recoveries), net	(29,098)	218	96
Total costs and expenses	1,202,615	1,140,241	1,051,113
Income from continuing operations before income taxes	104,350	64,729	37,935
Income tax expense	45,898	21,250	10,493
Income from continuing operations	58,452	43,479	27,442
Loss from discontinued operations	(268)	(684)	(394)
Net income	58,184	42,795	27,048
Net income attributable to non-redeemable noncontrolling interest	(523)	(526)	(442)
Net loss attributable to redeemable noncontrolling interest	46
Net income attributable to Viad	$ 57,707	$ 42,269	$ 26,606
Diluted income (loss) per common share:
Continuing operations attributable to Viad common stockholders	$ 2.84	$ 2.12	$ 1.34
Discontinued operations attributable to Viad common stockholders	(0.01)	(0.03)	(0.02)
Net income attributable to Viad common stockholders	$ 2.83	$ 2.09	$ 1.32
Weighted-average outstanding and potentially dilutive common shares	20,405	20,177	19,981
Basic income (loss) per common share:
Continuing operations attributable to Viad common stockholders	$ 2.84	$ 2.12	$ 1.34
Discontinued operations attributable to Viad common stockholders	(0.01)	(0.03)	(0.02)
Net income attributable to Viad common stockholders	$ 2.83	$ 2.09	$ 1.32
Weighted-average outstanding common shares	20,146	19,990	19,797
Dividends declared per common share	$ 0.40	$ 0.40	$ 0.40
Amounts attributable to Viad common stockholders
Income from continuing operations	$ 57,975	$ 42,953	$ 27,000
Loss from discontinued operations	(268)	(684)	(394)
Net income attributable to Viad	$ 57,707	$ 42,269	$ 26,606