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v3.10.0.1

Long-Term Debt - Long-Term Debt Components (Details) (Parenthetical) | 12 Months Ended
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Jun. 24, 2018
Debt Disclosure [Abstract] |
Capital lease obligations, scheduled maturity start date | 2018-07
Capital lease obligations, scheduled maturity end date | 2027-11

X
- Definition Capital lease obligations range end month and year. + References No definition available. + Details
Name: | ufi_CapitalLeaseObligationsRangeEndMonthAndYear
Namespace Prefix: | ufi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

X
- Definition Capital lease obligations range start month and year. + References No definition available. + Details
Name: | ufi_CapitalLeaseObligationsRangeStartMonthAndYear
Namespace Prefix: | ufi_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration

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