Revenue - Disaggregated Revenues and Product Sales for UNIFI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2023	Jan. 01, 2023
Disaggregation Of Revenue [Line Items]
Net sales	$ 136,917	$ 136,212	$ 275,761	$ 315,731
Third-Party Manufacturer [Member]
Disaggregation Of Revenue [Line Items]
Net sales	135,841	135,018	273,461	313,230
Service [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,076	1,194	2,300	2,501
REPREVE Fiber [Member]
Disaggregation Of Revenue [Line Items]
Net sales	45,725	42,866	88,186	92,045
All Other Products and Services [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 91,192	$ 93,346	$ 187,575	$ 223,686