Industry Segments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended											12 Months Ended	3 Months Ended
	Mar. 30, 2014 segment	Jun. 30, 2013 business_unit	Mar. 31, 2013	Mar. 30, 2014 Aerospace and Defense Electronics [Member] product_line		Mar. 31, 2013 Aerospace and Defense Electronics [Member]		Mar. 30, 2014 Instrumentation [Member] product_line		Mar. 31, 2013 Instrumentation [Member]		Dec. 29, 2013 Instrumentation [Member]	Mar. 30, 2014 Engineered Systems [Member] product_line	Mar. 31, 2013 Engineered Systems [Member]	Mar. 30, 2014 Digital Imaging [Member] product_line	Mar. 31, 2013 Digital Imaging [Member]
Revenue from External Customer [Line Items]
Number of business units that changed		2
Number of reportable segments	4
Number of product lines				1				3					3		1
Net sales	$ 573.5		$ 569.4	$ 153.3	[1]	$ 163.1	[1]	$ 258.9	[1]	$ 232.7	[1]	$ 9.4	$ 59.4	$ 71.2	$ 101.9	$ 102.4

[1] Our previously reported 2013 segment data has been restated to reflect a revised segment reporting structure adopted in the second quarter of 2013. The change only impacted the Instrumentation and Aerospace and Defense Electronics segments.