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Revenue Recognition - Narrative (Details) | 9 Months Ended
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Oct. 03, 2021 | Oct. 04, 2020
Carpet, Modular Resilient Flooring, and Related Products |  |
Percent of revenue due to contracts with customers (percentage) | 98.00% | 98.00%
Installation of Carpet and Other Flooring Related Material |  |
Percent of revenue due to contracts with customers (percentage) | 2.00% | 2.00%

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- Definition The percentage of revenue that is derived from contracts with customers. + References No definition available. + Details
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Namespace Prefix: | tile_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_ProductOrServiceAxis=tile_CarpetModularResilientFlooringRubberFlooringAndOtherFlooringRelatedMaterialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=tile_InstallationOfCarpetAndOtherFlooringRelatedMaterialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |