UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue, net	$ 215.5	$ 274.0	$ 698.2	$ 828.7
Cost of revenue, net	154.1	173.5	500.7	526.4
Gross profit	61.4	100.5	197.5	302.3
Operating expenses:
Research and development	46.7	40.7	137.7	117.2
Sales, general and administrative	49.7	50.6	160.1	143.7
Amortization or impairment of acquisition-related intangibles	3.7	3.9	10.9	11.7
Loss on disposal or impairment of other assets	0.3	5.3	2.1	5.7
Other operating expense	10.8	11.1	31.8	14.3
Operating (loss) income	(49.8)	(11.1)	(145.1)	9.7
Non-operating expense, net	14.5	8.4	7.8	23.7
Loss before income taxes	(64.3)	(19.5)	(152.9)	(14.0)
Income tax (benefit) expense	(2.9)	2.8	(1.2)	9.3
Net loss from continuing operations	(61.4)	(22.3)	(151.7)	(23.3)
Net loss from discontinued operations	0.0	(205.4)	0.0	(218.0)
Net loss	(61.4)	(227.7)	(151.7)	(241.3)
Net income attributable to noncontrolling interest	0.2	0.1	0.5	0.1
Net loss attributable to controlling interest	$ (61.6)	$ (227.8)	$ (152.2)	$ (241.4)
Basic and diluted loss per share
Continuing operations attributable to controlling interest (USD per share)	$ (0.57)	$ (0.22)	$ (1.41)	$ (0.23)
Net loss attributable to controlling interest (USD per share)	$ (0.57)	$ (2.20)	$ (1.41)	$ (2.35)
Weighted average shares - basic and diluted (shares)	108,115	103,659	107,718	102,807