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The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported on this Form 4 utilizing an average weighted price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Brouwer is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan\") and receives a quarterly dividend pursuant to the Plan.  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O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3.  3,010 Restricted Stock Units vested on 02/09/2018.  As a result of vesting, the Company is obligated to deliver 3,010 shares of Common Stock to the reporting person."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"3,010 Restricted Stock Units were granted on 02/09/2015, under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3.  3,010 Restricted Stock Units vested on 02/09/2018.  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