Goodwill and Intangible Assets, Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017	Jun. 30, 2018
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Gross	$ 617,825		$ 617,825		$ 613,599
Accumulated Amortization	553,454		553,454		538,143
Net	64,371		64,371		75,456
Intangible Assets, Gross	620,615		620,615		616,389
Total purchased intangible assets	67,161		67,161		78,246
Cost, Amortization	6,868	$ 11,140	13,783	$ 22,204
Amortization of Intangible Assets	756	995	1,529	2,747
Intangible Asset Amortization Expense	7,624	$ 12,135	15,312	$ 24,951
Future amortization expense [Abstract]
Remaining three months of 2017	10,918		10,918
2019	15,068		15,068
2020	13,368		13,368
2021	7,689		7,689
2022	7,205		7,205
Thereafter	10,123		10,123
Net	64,371		64,371		75,456
Intellectual Property [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Gross	488,846		488,846		485,465
Accumulated Amortization	437,652		437,652		423,869
Net	51,194		51,194		61,596
Future amortization expense [Abstract]
Net	51,194		51,194		61,596
Customer relationships [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Gross	116,505		116,505		116,294
Accumulated Amortization	104,557		104,557		103,217
Net	11,948		11,948		13,077
Future amortization expense [Abstract]
Net	11,948		11,948		13,077
Tradename [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Gross	9,974		9,974		9,340
Accumulated Amortization	8,745		8,745		8,588
Net	1,229		1,229		752
Future amortization expense [Abstract]
Net	1,229		1,229		752
Patents [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Gross	2,500		2,500		2,500
Accumulated Amortization	2,500		2,500		2,469
Net	0		0		31
Future amortization expense [Abstract]
Net	0		0		31
In Process Research and Development [Member]
Intangible Assets, Net (Excluding Goodwill) [Abstract]
IPR&D	$ 2,790		$ 2,790		$ 2,790