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Supplemental Cash Flow Disclosures (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Cash paid during the period for: |  |
Interest | $ 16,334us-gaap_InterestPaidNet | $ 14,231us-gaap_InterestPaidNet
Income taxes | 24,894us-gaap_IncomeTaxesPaidNet | 24,868us-gaap_IncomeTaxesPaidNet
Change in accounts payable related to property, plant, and equipment | $ 6,470kmt_Changeinaccountspayablerelatedtopurchasesofpropertyplantandequipment | $ 8,600kmt_Changeinaccountspayablerelatedtopurchasesofpropertyplantandequipment

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- Details
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- Definition Change in accounts payable related to purchases of property plant and equipment + References No definition available. + Details
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Namespace Prefix: | kmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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