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Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Net intangible assets) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | ---
Intangible Assets, Net: |  |  |
Cost | $ 672,949 us-gaap_FiniteLivedIntangibleAssetsGross | $ 633,985 us-gaap_FiniteLivedIntangibleAssetsGross |
Acquisitions | 0 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired | 36,980 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired |
Currency translation | (6,968)mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments | 1,984 mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments |
Accumulated amortization | 586,663 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | 561,939 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
Net Value | 79,318 us-gaap_FiniteLivedIntangibleAssetsNet | 111,010 us-gaap_FiniteLivedIntangibleAssetsNet | 98,296 us-gaap_FiniteLivedIntangibleAssetsNet
Customer Relationships [Member] |  |  |
Intangible Assets, Net: |  |  |
Cost | 373,117 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 351,873 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Acquisitions | 0 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 21,792 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Currency translation | (180)mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | (548)mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Accumulated amortization | 339,020 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 332,119 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Net Value | 33,917 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 40,998 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember | 26,210 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Patents [Member] |  |  |
Intangible Assets, Net: |  |  |
Cost | 297,999 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 280,623 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Acquisitions | 0 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 15,188 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Currency translation | (6,780)mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 2,188 mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Accumulated amortization | 246,628 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 228,928 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember |
Net Value | 44,591 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 69,071 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember | 71,031 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_PatentsMember
Other Intangible Assets [Member] |  |  |
Intangible Assets, Net: |  |  |
Cost | 1,833 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 1,489 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Acquisitions | 0 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 0 mhk_FiniteLivedIntangibleAssetsAccumulatedAssetsAcquired / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Currency translation | (8)mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 344 mhk_FiniteLivedIntangibleAssetsAccumulatedTranslationAdjustments / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Accumulated amortization | 1,015 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | 892 us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Net Value | $ 810 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember | $ 941 us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |

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