New Accounting Standards	3 Months Ended
Sep. 30, 2017
Accounting Changes and Error Corrections [Abstract]
NEW ACCOUNTING STANDARDS	NEW ACCOUNTING STANDARDS Adopted In March 2016, the Financial Accounting Standards Board (FASB) issued ASU No. 2016-09, "Improvements to Employee Share-Based Payment Accounting," which is intended to simplify equity-based award accounting and presentation. The guidance impacts income tax accounting related to equity-based awards, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. We adopted this guidance July 1, 2017. The adoption of this guidance resulted in three changes. (1) The increase to deferred tax assets of $1.4 million related to cumulative excess tax benefits previously unrecognized was offset by a valuation allowance, due to the valuation allowance position of our U.S. entity. (2) Excess tax benefits, previously reported in the financing activities section of the condensed consolidated statement of cash flows, is now reported in the operating activities section, adopted on a prospective basis. Therefore, prior period statements of cash flow were not retrospectively adjusted for this provision. (3) Employee taxes paid when Kennametal withholds shares for tax withholding purposes, previously reported in the operating activities section of the condensed consolidated statement of cash flows, is now reported in the financing activities section, adopted on a retrospective basis. Therefore, prior period statements of cash flow were retrospectively adjusted for this provision: cash flow provided by operating activities and cash flow used for financing activities increased by $1.7 million for the three months ended September 30, 2016. In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory," which requires that inventory other than LIFO be subsequently measured at the lower of cost and net realizable value, as opposed to the previous practice of lower of cost or market. Subsequent measurement is unchanged for inventory measured using LIFO. We adopted this guidance July 1, 2017. Adoption of this guidance did not have a material impact on our condensed consolidated financial statements. Issued In August 2017, the FASB issued ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities," which seeks to improve financial reporting and obtain closer alignment with risk management activities, in addition to simplifying the application of hedge accounting guidance and additional disclosures. This guidance is effective for us July 1, 2019. We are in the process of assessing the impact the adoption of this guidance may have on our condensed consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers: Topic 606.” This ASU replaces nearly all existing U.S. GAAP guidance on revenue recognition. The standard prescribes a five-step model for recognizing revenue, the application of which will require significant judgment. It also requires additional disclosures. We will adopt this standard on July 1, 2018. Currently, we are analyzing the standard's impact on our customer arrangements and evaluating the new standard against our historical accounting policies and practices, including the timing of revenue recognition. In particular, we are assessing the identification of performance obligations and the impact of variable consideration on the transaction price determination. We continue to evaluate the impact that the adoption of this ASU will have on the condensed consolidated financial statements, including the timing of revenue recognition associated with certain customized products primarily in the Industrial and Infrastructure segments. Further, we continue to assess certain marketing programs and expect to identify more performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified, primarily in the Industrial and Widia segments. We are evaluating the timing of revenue to determine if it will occur in the same or different periods. We have not determined the complete impact of adoption on our condensed consolidated financial statements.

NEW ACCOUNTING STANDARDS

Adopted

In March 2016, the Financial Accounting Standards Board (FASB) issued ASU No. 2016-09, "Improvements to Employee Share-Based Payment Accounting," which is intended to simplify equity-based award accounting and presentation. The guidance impacts income tax accounting related to equity-based awards, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. We adopted this guidance July 1, 2017. The adoption of this guidance resulted in three changes. (1) The increase to deferred tax assets of $1.4 million related to cumulative excess tax benefits previously unrecognized was offset by a valuation allowance, due to the valuation allowance position of our U.S. entity. (2) Excess tax benefits, previously reported in the financing activities section of the condensed consolidated statement of cash flows, is now reported in the operating activities section, adopted on a prospective basis. Therefore, prior period statements of cash flow were not retrospectively adjusted for this provision. (3) Employee taxes paid when Kennametal withholds shares for tax withholding purposes, previously reported in the operating activities section of the condensed consolidated statement of cash flows, is now reported in the financing activities section, adopted on a retrospective basis. Therefore, prior period statements of cash flow were retrospectively adjusted for this provision: cash flow provided by operating activities and cash flow used for financing activities increased by $1.7 million for the three months ended September 30, 2016.

In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory," which requires that inventory other than LIFO be subsequently measured at the lower of cost and net realizable value, as opposed to the previous practice of lower of cost or market. Subsequent measurement is unchanged for inventory measured using LIFO. We adopted this guidance July 1, 2017. Adoption of this guidance did not have a material impact on our condensed consolidated financial statements.

Issued

In August 2017, the FASB issued ASU No. 2017-12, "Targeted Improvements to Accounting for Hedging Activities," which seeks to improve financial reporting and obtain closer alignment with risk management activities, in addition to simplifying the application of hedge accounting guidance and additional disclosures. This guidance is effective for us July 1, 2019. We are in the process of assessing the impact the adoption of this guidance may have on our condensed consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers: Topic 606.” This ASU replaces nearly all existing U.S. GAAP guidance on revenue recognition. The standard prescribes a five-step model for recognizing revenue, the application of which will require significant judgment. It also requires additional disclosures. We will adopt this standard on July 1, 2018. Currently, we are analyzing the standard's impact on our customer arrangements and evaluating the new standard against our historical accounting policies and practices, including the timing of revenue recognition. In particular, we are assessing the identification of performance obligations and the impact of variable consideration on the transaction price determination. We continue to evaluate the impact that the adoption of this ASU will have on the condensed consolidated financial statements, including the timing of revenue recognition associated with certain customized products primarily in the Industrial and Infrastructure segments. Further, we continue to assess certain marketing programs and expect to identify more performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified, primarily in the Industrial and Widia segments. We are evaluating the timing of revenue to determine if it will occur in the same or different periods. We have not determined the complete impact of adoption on our condensed consolidated financial statements.