GOODWILL AND INTANGIBLE ASSETS - Gross Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Millions	Jul. 01, 2016	Oct. 02, 2015
Finite Lived Intangible Assets [Line Items]
Accumulated amortization	$ (74.7)	$ (65.1)
Net carrying amount	67.7	62.0
Acquired existing technology
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	86.4	71.7
Patents, licenses and other
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	35.3	35.3
Customer contracts and supplier relationship
Finite Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	$ 20.7	$ 20.1