Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Goodwill [Line Items]
Amortization of acquired intangible assets	$ 4,477	$ 5,811
Future amortization expenses, 2017	17,300
Future amortization expenses, 2018	16,300
Future amortization expenses, 2019	14,800
Future amortization expenses, 2020	12,900
Future amortization expenses, 2021	7,600
Space And Defense Controls
Goodwill [Line Items]
Goodwill, accumulated impairment loss	4,800
Components
Goodwill [Line Items]
Goodwill, accumulated impairment loss	$ 38,200