Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 28, 2021	Mar. 28, 2021
Income Tax Disclosure [Abstract]
Discrete tax expense (benefit)	$ 273	$ (4,874)
Change in valuation allowance income tax (benefit) expense	$ (133)	$ 1,508

Global intangible low tax income measurement period adjustment income tax expense benefit.

No definition available.

Name:	ufi_GlobalIntangibleLowTaxIncomeMeasurementPeriodAdjustmentIncomeTaxExpenseBenefit
Namespace Prefix:	ufi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration