Goodwill and Intangible Assets, Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 29, 2018	Sep. 23, 2017	Jun. 30, 2018
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Original Cost	$ 617,825		$ 613,599
Accumulated Amortization	545,830		538,143
Net	71,995		75,456
Intangible Assets, Gross	620,615		616,389
Total purchased intangible assets	74,785		78,246
Cost of Goods and Services Sold, Amortization	6,915	$ 11,064
Amortization of Intangible Assets	773	1,752
Intangible Asset Amortization Expense	7,688	$ 12,816
Future amortization expense [Abstract]
Remaining three months of 2017	17,267
2019	15,368
2020	13,669
2021	7,989
2022	7,505
Thereafter	10,197
Net	71,995		75,456
Intellectual Property [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Original Cost	488,846		485,465
Accumulated Amortization	430,784		423,869
Net	58,062		61,596
Future amortization expense [Abstract]
Net	58,062		61,596
Customer relationships [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Original Cost	116,505		116,294
Accumulated Amortization	103,885		103,217
Net	12,620		13,077
Future amortization expense [Abstract]
Net	12,620		13,077
Tradename [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Original Cost	9,974		9,340
Accumulated Amortization	8,661		8,588
Net	1,313		752
Future amortization expense [Abstract]
Net	1,313		752
Patents [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Original Cost	2,500		2,500
Accumulated Amortization	2,500		2,469
Net	0		31
Future amortization expense [Abstract]
Net	0		31
In Process Research and Development [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
IPR&D	$ 2,790		$ 2,790