Revenue Recognition - Disaggregated Revenues and Product Sales for UNIFI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 26, 2021	Dec. 27, 2020
Disaggregation Of Revenue [Line Items]
Net sales	$ 201,410	$ 162,776	$ 397,402	$ 304,281
Third-Party Manufacturer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	199,585	160,146	392,882	298,987
Service [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,825	2,630	4,520	5,294
REPREVE Fiber [Member]
Disaggregation Of Revenue [Line Items]
Net sales	81,524	62,531	153,430	114,143
All Other Products and Services [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 119,886	$ 100,245	$ 243,972	$ 190,138