Segment Information (Reconciliation of Revenue from Segments to Consolidated) (Details) - Net sales - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Apr. 01, 2017	Apr. 01, 2017
Segment Reporting, Revenue Reconciling Item
Prior period reclassification adjustment	$ 121,463	$ 237,354
Space And Defense Controls
Segment Reporting, Revenue Reconciling Item
Prior period reclassification adjustment	32,986	62,646
Industrial Systems
Segment Reporting, Revenue Reconciling Item
Prior period reclassification adjustment	$ 88,477	$ 174,708