GOODWILL AND INTANGIBLE ASSETS - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Oct. 02, 2015
Indefinite-lived Intangible Assets [Line Items]
Amortization expense for intangible assets	$ 2,987	$ 1,647
Future amortization expense, fiscal year 2016	10,000
Future amortization expense, fiscal year 2017	13,100
Future amortization expense, fiscal year 2018	9,600
Future amortization expense, fiscal year 2019	9,000
Future amortization expense, fiscal year 2020	7,700
Future amortization expense, thereafter	9,100
In Process Research and Development
Indefinite-lived Intangible Assets [Line Items]
Research and development asset acquired fair value	$ 10,600		$ 10,600