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Employee Benefit Plans (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]      
Minimum eligible service period (days) 90 days    
Amount of employer contribution per $1.00 contributed by employee 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch    
Maximum percentage of employee salary company matches at disclosed ratio 6.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent    
Employee contributions $ 42,681mhk_DefinedContributionPlanEmployeeContributionAmount $ 38,632mhk_DefinedContributionPlanEmployeeContributionAmount $ 35,986mhk_DefinedContributionPlanEmployeeContributionAmount
Employer contributions to employee benefit plan 17,654us-gaap_DefinedContributionPlanCostRecognized 15,994us-gaap_DefinedContributionPlanCostRecognized 15,046us-gaap_DefinedContributionPlanCostRecognized
Net amount recognized in other comprehensive income related to actuarial gains (losses) (659)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax 771us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax (1,591)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
Expected cash contributions to the Non-U.S. Plans in 2013 $ 489us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear