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Leases - Narrative (Details) $ in Thousands | Dec. 31, 2021 USD ($)
--- | ---
Leases [Abstract] |
Amount of leases not yet commenced | $ 10,969

X
- Definition Lessee, Not Yet Commenced, Amount + References No definition available. + Details
Name: | mhk_LesseeNotYetCommencedAmount
Namespace Prefix: | mhk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration