Subsidiaries of Group (Detail)	12 Months Ended
	Jun. 29, 2012
Fabrinet Co., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Manufacturing and assembly
Country of Incorporation	Thailand
Percent interest	99.99%
Fabrinet USA, Inc.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Marketing and administrative support services
Country of Incorporation	United States of America (California)
Percent interest	100.00%
FBN New Jersey Manufacturing, Inc.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Manufacturing and assembly
Country of Incorporation	United States of America (Delaware)
Percent interest	100.00%
Fabrinet China Holdings
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Holding company
Country of Incorporation	Mauritius Island
Percent interest	100.00%
CASIX Inc. (a wholly-owned subsidiary of Fabrinet China Holdings)
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Manufacturing and assembly
Country of Incorporation	People's Republic of China
Percent interest	100.00%
Fabrinet Pte., Ltd.
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Sales and administrative support services and supply chain sourcing center
Country of Incorporation	Singapore
Percent interest	100.00%
Fabrinet AB
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Business	Business development in Scandinavia and Europe
Country of Incorporation	Sweden
Percent interest	100.00%