Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Sep. 29, 2019	Jul. 01, 2019
Lessee Lease Description [Line Items]
Operating lease assets	$ 8,718	$ 9,802
Operating Lease Liabilities	9,015	$ 10,105
Property, Plant & Equipment, Net [Member]
Lessee Lease Description [Line Items]
Addition in finance lease assets	5,400
Decrease in operating lease assets	$ 1,600
Minimum [Member]
Lessee Lease Description [Line Items]
LesseeOperatingAndFinanceLeaseTermOfContract	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
LesseeOperatingAndFinanceLeaseTermOfContract	15 years

Addition in finance lease assets.

No definition available.

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Namespace Prefix:	ufi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Lessee operating and finance lease term of contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	ufi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase (decrease) during the reporting period in the aggregate amount of assets used to generate operating income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

+ Details

Name:	us-gaap_OperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

+ Details

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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