BUSINESS COMBINATIONS AND DISPOSITIONS - Additional Information (Details) $ in Thousands, ¥ in Millions					1 Months Ended	3 Months Ended
	Oct. 27, 2014 USD ($)	Oct. 27, 2014 JPY (¥)	Nov. 01, 2013 USD ($)	Sep. 12, 2013 USD ($)	Jan. 31, 2015 USD ($)	Sep. 26, 2015 USD ($)	Dec. 27, 2014 USD ($)	Sep. 27, 2014 USD ($)
Komoro Business
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]
Net assets transferred	$ 6,300
Proceed from sale of business	17,100	¥ 1,850
Proceeds from sale of business paid upon closing	14,800	1,600
Proceeds from sale of business paid into escrow	$ 2,100	¥ 250
Post-closing net asset valuation adjustment							$ 1,400
Income from continuing operations before income taxes								$ 1,600
Komoro Business | Restructuring, Acquisition and Related (Income) Expense, Net
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]
Gain from transfer of net assets							$ 8,300
Amplifier Business
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]
Proceed from sale of business			$ 79,600
Income from continuing operations before income taxes						$ 0		(215)
Cost to sell amplifier business including option price			88,600
Post closing adjustment receivable			$ 4,000
Cash received from exercise of options				$ 5,000
Proceeds from holdback on sale of business					$ 900
Release of holdback amount					3,100
Zurich Business
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]
Proceed from sale of business				90,600
Income from continuing operations before income taxes						$ 0		$ (163)
Post closing adjustment receivable				6,000
Proceeds from holdback on sale of business					1,400
Release of holdback amount					$ 4,600
Post closing working capital adjustment				$ 2,900