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Debt (Accounts Receivable Securitization) (Details) (USD $) | 0 Months Ended |  |
--- | --- | --- | ---
Sep. 11, 2014 | Dec. 19, 2012 | Apr. 04, 2015 | Dec. 31, 2014
Line of Credit Facility [Line Items] |  |  |  |
Receivables securing amount utilized on facility |  |  | $ 747,879,000us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue |
Secured Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Term of line of credit (years) |  | 3 years |  |
Securitization agreement, maximum borrowing capacity | 500,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember | 300,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember |  |
Basis spread on securitization agreement | 0.70%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember |  |  |
Commitment fee percentage on unused amount of each lender's commitment | 0.35%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember |  |  |
Carrying Value [Member] | Secured Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Securitization facility |  |  | $ 492,900,000us-gaap_LinesOfCreditFairValueDisclosure / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember | $ 500,000,000us-gaap_LinesOfCreditFairValueDisclosure / us-gaap_CreditFacilityAxis = mhk_SecuredCreditFacilityMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember

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- Definition Term of line of credit. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 + Details
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- Definition Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=34720971&loc=SL6224234-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 + Details
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