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v2.4.1.9

Derivative Instruments and Hedging Activities (Details Textual 1) (Forward Starting Interest Rate Swap Contracts [Member], USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013
Forward Starting Interest Rate Swap Contracts [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Interest expense | $ 505us-gaap_DerivativeLossOnDerivative / us-gaap_DerivativeInstrumentRiskAxis = kmt_ForwardStartingInterestRateSwapContractsMember | $ 500us-gaap_DerivativeLossOnDerivative / us-gaap_DerivativeInstrumentRiskAxis = kmt_ForwardStartingInterestRateSwapContractsMember | $ 1,010us-gaap_DerivativeLossOnDerivative / us-gaap_DerivativeInstrumentRiskAxis = kmt_ForwardStartingInterestRateSwapContractsMember | $ 1,000us-gaap_DerivativeLossOnDerivative / us-gaap_DerivativeInstrumentRiskAxis = kmt_ForwardStartingInterestRateSwapContractsMember

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- Definition Amount of decrease in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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