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v3.20.1

Leases (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 28, 2020 USD ($)
Lessee, Lease, Description [Line Items] |
Leases not yet commenced | $ 2,618
Minimum |
Lessee, Lease, Description [Line Items] |
Term of contracts | 1 year
Term of contracts, majority | 1 year
Lease extensions | 3 years
Maximum |
Lessee, Lease, Description [Line Items] |
Term of contracts | 60 years
Term of contracts, majority | 8 years
Lease extensions | 10 years

X
- Definition Lessee, Lease, Renewal Term + References No definition available. + Details
Name: | mhk_LesseeLeaseRenewalTerm
Namespace Prefix: | mhk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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
- Definition Lessee, Term Of Contract + References No definition available. + Details
Name: | mhk_LesseeTermOfContract
Namespace Prefix: | mhk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Term Of Contract, Majority + References No definition available. + Details
Name: | mhk_LesseeTermOfContractMajority
Namespace Prefix: | mhk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |