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Principles Of Consolidation And Presentation
9 Months Ended
Sep. 30, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Principles Of Consolidation And Presentation
Principles of Consolidation and Presentation

The accompanying consolidated financial statements include the accounts of Commerce Bancshares, Inc. and all majority-owned subsidiaries (the Company). Most of the Company's operations are conducted by its subsidiary bank, Commerce Bank (the Bank). The consolidated financial statements in this report have not been audited. All significant intercompany accounts and transactions have been eliminated. Certain reclassifications were made to 2011 data to conform to current year presentation. In the opinion of management, all adjustments necessary to present fairly the financial position and the results of operations for the interim periods have been made. All such adjustments are of a normal recurring nature. The results of operations for the three and nine month periods ended September 30, 2012 are not necessarily indicative of results to be attained for the full year or any other interim periods.

The significant accounting policies followed in the preparation of the quarterly financial statements are disclosed in the 2011 Annual Report on Form 10-K.