Investments in Unconsolidated Affiliates and Variable Interest Entities - Schedule of Unaudited, Condensed Balance Sheet Information for Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	Sep. 25, 2016	Jun. 26, 2016
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 264,352	$ 256,978
Noncurrent assets	197,610	204,320
Current liabilities	62,484	60,969
Noncurrent liabilities	2,951	3,057
Shareholders’ equity and capital accounts	396,527	397,272
Unifi’s portion of undistributed earnings	46,144
Parkdale America LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	253,137	244,197
Noncurrent assets	196,580	203,251
Current liabilities	59,138	56,921
Noncurrent liabilities	2,951	3,057
Shareholders’ equity and capital accounts	387,628	387,470
Unifi’s portion of undistributed earnings	44,711
UNF and UNF America [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	11,215	12,781
Noncurrent assets	1,030	1,069
Current liabilities	3,346	4,048
Shareholders’ equity and capital accounts	8,899	$ 9,802
Unifi’s portion of undistributed earnings	$ 1,433