Revenue Recognition - Disaggregated Revenues for UNIFI (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Jun. 28, 2020	[1]	Mar. 29, 2020	[1]	Dec. 29, 2019	[1]	Sep. 29, 2019	[1]	Jun. 30, 2019	[2]	Mar. 31, 2019	[2]	Dec. 30, 2018	[2]	Sep. 30, 2018	[2]	Jun. 28, 2020	Jun. 28, 2020	Jun. 30, 2019	Jun. 24, 2018
Disaggregation Of Revenue [Line Items]
Net sales	$ 86,055		$ 170,994		$ 169,511		$ 179,949		$ 179,493		$ 179,989		$ 167,711		$ 181,611		$ 606,509	$ 606,509	$ 708,804	$ 678,912
Third-Party Manufacturer [Member]
Disaggregation Of Revenue [Line Items]
Net sales																		598,510	700,077	670,239
Service [Member]
Disaggregation Of Revenue [Line Items]
Net sales																		$ 7,999	$ 8,727	$ 8,673

[1] Net sales for the fiscal quarter ended June 28, 2020, includes the impact of global demand declines and decreased economic activity caused by the COVID-19 pandemic

[2] The fiscal quarter ended September 30, 2018 was comprised of fourteen weeks.