Basis of Statement Presentation	3 Months Ended
Oct. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Statement Presentation	BASIS OF STATEMENT PRESENTATION The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and in compliance with instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The financial statements and the related notes are condensed and should be read in conjunction with the Consolidated Financial Statements and related notes for the fiscal year ended July 31, 2017 included in our Annual Report on Form 10-K filed with the SEC. The unaudited Condensed Consolidated Financial Statements include the accounts of Oil-Dri Corporation of America and its subsidiaries. All significant intercompany transactions are eliminated. Except as otherwise indicated herein or as the context otherwise requires, references to “Oil-Dri,” the “Company,” “we,” “us” or “our” refer to Oil-Dri Corporation of America and its subsidiaries. The unaudited Condensed Consolidated Financial Statements reflect all adjustments, consisting of normal recurring accruals and reclassifications which are, in the opinion of management, necessary for a fair presentation of the statements contained herein. Operating results for the three months ended October 31, 2017 are not necessarily an indication of the results that may be expected for the fiscal year ending July 31, 2018. The preparation of the unaudited Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires the use of estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures. Estimates and assumptions are revised periodically. Actual results could differ from these estimates. Summary of Significant Accounting Policies Except as described herein, our significant accounting policies, which are detailed in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017, have not materially changed. However, the unaudited Condensed Consolidated Financial Statements reflect changes required upon adoption of new accounting guidance, as described in Note 2. The following is a description of certain of our significant accounting policies. We recognize revenue when risk of loss and title are transferred under the terms of our sales agreements with customers at a fixed and determinable price and collection of payment is probable. Trade promotion reserves are provided for sales incentives made directly to consumers, such as coupons, and sales incentives made to customers, such as slotting, discounts based on sales volume, cooperative marketing programs and other arrangements. Such trade promotion costs are netted against sales. Sales returns and allowances are not material. Selling, general and administrative expenses include salaries, wages and benefits associated with staff outside the manufacturing and distribution functions, all marketing related costs, any miscellaneous trade spending expenses not required to be included in net sales, research and development costs, depreciation and amortization related to assets outside the manufacturing and distribution process and all other non-manufacturing and non-distribution expenses. We record an allowance for doubtful accounts based on our historical experience and a periodic review of our accounts receivable, including a review of the overall aging of accounts, consideration of customer credit risk and analysis of facts and circumstances about specific customer accounts. A customer account is determined to be uncollectible when it is probable that a loss will be incurred after we have completed our internal collection procedures, including termination of shipments, direct customer contact and formal demand of payment. We mine sorbent materials on property that we either own or lease as part of our overall operations. A significant part of our overall mining cost is incurred during the process of removing the overburden (non-usable material) from the mine site, thus exposing the sorbent material used in a majority of our production processes. These stripping costs are treated as a variable inventory production cost and are included in cost of sales in the period they are incurred. We defer and amortize the pre-production overburden removal costs associated with opening a new mine. Additionally, it is our policy to capitalize the purchase cost of land and mineral rights, including associated legal fees, survey fees and real estate fees. The costs of obtaining mineral patents, including legal fees and drilling expenses, are also capitalized. Pre-production development costs on new mines and any prepaid royalties that may be offset against future royalties due upon extraction of the minerals are also capitalized. All exploration related costs are expensed as incurred. We perform ongoing reclamation activities during the normal course of our overburden removal. As overburden is removed from a mine site, it is hauled to previously mined sites and is used to refill older sites. This process allows us to continuously reclaim older mine sites and dispose of overburden simultaneously, therefore minimizing the costs associated with the reclamation process.

BASIS OF STATEMENT PRESENTATION

The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and in compliance with instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The financial statements and the related notes are condensed and should be read in conjunction with the Consolidated Financial Statements and related notes for the fiscal year ended July 31, 2017 included in our Annual Report on Form 10-K filed with the SEC.

The unaudited Condensed Consolidated Financial Statements include the accounts of Oil-Dri Corporation of America and its subsidiaries. All significant intercompany transactions are eliminated. Except as otherwise indicated herein or as the context otherwise requires, references to “Oil-Dri,” the “Company,” “we,” “us” or “our” refer to Oil-Dri Corporation of America and its subsidiaries.

The unaudited Condensed Consolidated Financial Statements reflect all adjustments, consisting of normal recurring accruals and reclassifications which are, in the opinion of management, necessary for a fair presentation of the statements contained herein. Operating results for the three months ended October 31, 2017 are not necessarily an indication of the results that may be expected for the fiscal year ending July 31, 2018.

The preparation of the unaudited Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires the use of estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures. Estimates and assumptions are revised periodically. Actual results could differ from these estimates.

Summary of Significant Accounting Policies

Except as described herein, our significant accounting policies, which are detailed in our Annual Report on Form 10-K for the fiscal year ended July 31, 2017, have not materially changed. However, the unaudited Condensed Consolidated Financial Statements reflect changes required upon adoption of new accounting guidance, as described in Note 2. The following is a description of certain of our significant accounting policies.

We recognize revenue when risk of loss and title are transferred under the terms of our sales agreements with customers at a fixed and determinable price and collection of payment is probable. Trade promotion reserves are provided for sales incentives made directly to consumers, such as coupons, and sales incentives made to customers, such as slotting, discounts based on sales volume, cooperative marketing programs and other arrangements. Such trade promotion costs are netted against sales. Sales returns and allowances are not material.

Selling, general and administrative expenses include salaries, wages and benefits associated with staff outside the manufacturing and distribution functions, all marketing related costs, any miscellaneous trade spending expenses not required to be included in net sales, research and development costs, depreciation and amortization related to assets outside the manufacturing and distribution process and all other non-manufacturing and non-distribution expenses.

We record an allowance for doubtful accounts based on our historical experience and a periodic review of our accounts receivable, including a review of the overall aging of accounts, consideration of customer credit risk and analysis of facts and circumstances about specific customer accounts. A customer account is determined to be uncollectible when it is probable that a loss will be incurred after we have completed our internal collection procedures, including termination of shipments, direct customer contact and formal demand of payment.

We mine sorbent materials on property that we either own or lease as part of our overall operations. A significant part of our overall mining cost is incurred during the process of removing the overburden (non-usable material) from the mine site, thus exposing the sorbent material used in a majority of our production processes. These stripping costs are treated as a variable inventory production cost and are included in cost of sales in the period they are incurred. We defer and amortize the pre-production overburden removal costs associated with opening a new mine.

Additionally, it is our policy to capitalize the purchase cost of land and mineral rights, including associated legal fees, survey fees and real estate fees. The costs of obtaining mineral patents, including legal fees and drilling expenses, are also capitalized. Pre-production development costs on new mines and any prepaid royalties that may be offset against future royalties due upon extraction of the minerals are also capitalized. All exploration related costs are expensed as incurred.

We perform ongoing reclamation activities during the normal course of our overburden removal. As overburden is removed from a mine site, it is hauled to previously mined sites and is used to refill older sites. This process allows us to continuously reclaim older mine sites and dispose of overburden simultaneously, therefore minimizing the costs associated with the reclamation process.