Cash and Cash Equivalents - Additional Information (Detail)	Jun. 29, 2012	Jun. 24, 2011
Cash and Cash Equivalents [Line Items]
weighted average effective interest rate on short term bank deposits	0.76%	0.59%

The weighted average interest rate for checking deposit, savings deposit, time deposit, money market fund and other short term deposit both domestic and foreign banking offices.

No definition available.

Name:	fn_WeightedAverageRateDeposits
Namespace Prefix:	fn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant