Acquisition of Businesses (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Summary of the unaudited pro forma results of operations of Viad
Revenue	$ 246,450	$ 242,421	$ 515,672	$ 533,204
Depreciation and amortizations	8,073	7,828	15,204	15,231
Operating Income	10,466	10,603	16,000	26,969
Net income	$ 6,068	$ 4,851	$ 7,095	$ 14,126
Diluted net income per share	$ 0.30	$ 0.24	$ 0.35	$ 0.70
Basic net income per share	$ 0.30	$ 0.24	$ 0.35	$ 0.70

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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