Investments in Unconsolidated Affiliates and Variable Interest Entities - Schedule of Unaudited, Condensed Balance Sheet Information for Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	Mar. 26, 2017	Jun. 26, 2016
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 274,172	$ 256,978
Noncurrent assets	186,627	204,320
Current liabilities	60,586	60,969
Noncurrent liabilities	3,321	3,057
Shareholders’ equity and capital accounts	396,892	397,272
Unifi’s portion of undistributed earnings	46,726
Parkdale America LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	265,207	244,197
Noncurrent assets	185,541	203,251
Current liabilities	57,529	56,921
Noncurrent liabilities	3,321	3,057
Shareholders’ equity and capital accounts	389,898	387,470
Unifi’s portion of undistributed earnings	45,278
UNF and UNF America [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	8,965	12,781
Noncurrent assets	1,086	1,069
Current liabilities	3,057	4,048
Shareholders’ equity and capital accounts	6,994	$ 9,802
Unifi’s portion of undistributed earnings	$ 1,448