Cover - shares	3 Months Ended
	Sep. 27, 2024	Oct. 25, 2024
Cover [Abstract]
Document type	10-Q
Document quarterly report	true
Document period end date	Sep. 27, 2024
Document transition report	false
Entity file number	001-34775
Entity registrant name	FABRINET
Entity incorporation, state or country code	E9
Entity tax identification number	98-1228572
Entity address, address line one	c/o Intertrust Corporate Services
Entity address, address line two	One Nexus Way, Camana Bay
Entity address, city or town	Grand Cayman
Entity address, country	KY
Entity address, postal zip code	KY1-9005
City area code	66 2
Local phone number	524-9600
Title of 12(b) security	Ordinary Shares, $0.01 par value
Trading symbol	FN
Security exchange name	NYSE
Entity current reporting status	Yes
Entity interactive data current	Yes
Entity filer category	Large Accelerated Filer
Entity small business	false
Entity emerging growth company	false
Entity shell company	false
Entity common stock, shares outstanding (in shares)		36,267,888
Current fiscal year end date	--06-27
Amendment flag	false
Document fiscal year focus	2025
Document fiscal period focus	Q1
Entity central index key	0001408710