Restructuring - Narrative (Details) - Employee severance $ in Thousands	3 Months Ended	12 Months Ended
	Jul. 02, 2017 USD ($) employee	Apr. 02, 2017 USD ($) employee	Oct. 01, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 653
Payments for restructuring actions	136
Accrued balance for employee severance costs	5,358	$ 4,841
Automotive and Industrial Division (AID) Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		5,000
Payments for restructuring actions		4,900
Radio Frequency (RF) Plan
Restructuring Cost and Reserve [Line Items]
Accrued balance for employee severance costs	2,900
HSBC Business
Restructuring Cost and Reserve [Line Items]
Accrued balance for employee severance costs	1,400
Other Restructuring Plan - 2017 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 700	$ 4,000
Number of reduced headcount (employees) | employee	16	59
Payments for restructuring actions	$ 100
Accrued balance for employee severance costs	$ 300
Scenario, Forecast | Automotive and Industrial Division (AID) Plan
Restructuring Cost and Reserve [Line Items]
Accrued balance for employee severance costs			$ 100