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v3.21.2

Leases - Additional Information (Details) | 12 Months Ended
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Jun. 27, 2021
Minimum [Member] |
Lessee Lease Description [Line Items] |
Lessee operating and finance lease term of contract | 1 year
Maximum [Member] |
Lessee Lease Description [Line Items] |
Lessee operating and finance lease term of contract | 15 years

X
- Definition Lessee operating and finance lease term of contract. + References No definition available. + Details
Name: | ufi_LesseeOperatingAndFinanceLeaseTermOfContract
Namespace Prefix: | ufi_
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: |