CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Income Statement [Abstract]
Net revenue	$ 457.8	$ 373.7	$ 907.7	$ 727.8
Cost of sales	256.3	244.5	526.0	471.8
Amortization of acquired developed intangibles	12.4	4.4	24.9	5.2
Gross profit	189.1	124.8	356.8	250.8
Operating expenses:
Research and development	51.0	42.8	100.9	77.4
Selling, general and administrative	62.4	62.7	119.1	95.7
Restructuring and related charges	0.9	7.8	2.2	9.1
Total operating expenses	114.3	113.3	222.2	182.2
Income from operations	74.8	11.5	134.6	68.6
Unrealized gain on derivative liability	0.0	10.9	0.0	8.8
Interest expense	(18.3)	(8.5)	(29.7)	(13.6)
Other income (expense), net	1.2	3.8	6.2	6.5
Income before income taxes	57.7	17.7	111.1	70.3
Provision for income taxes	8.6	1.4	14.4	6.6
Net income	49.1	16.3	96.7	63.7
Items reconciling net income to net income attributable to common stockholders:
Less: Cumulative dividends on Series A Preferred Stock	0.0	(0.1)	0.0	(0.3)
Less: Earnings allocated to Series A Preferred Stock	0.0	(0.1)	0.0	(1.2)
Net income attributable to common stockholders - Basic	49.1	16.1	96.7	62.2
Add: Earnings allocated to Series A Preferred Stock	0.0	0.1	0.0	1.2
Less: Unrealized gain on derivative liability on Series A Preferred Stock	0.0	(10.9)	0.0	(8.8)
Add: Cumulative dividends on Series A Preferred Stock	0.0	0.1	0.0	0.3
Net income attributable to common stockholders - Diluted	$ 49.1	$ 5.4	$ 96.7	$ 54.9
Net income per share attributable to common stockholders:
Basic (In dollars per share)	$ 0.64	$ 0.24	$ 1.26	$ 0.96
Diluted (in dollars per share)	$ 0.63	$ 0.08	$ 1.24	$ 0.82
Shares used to compute net income per share attributable to common stockholders:
Basic (in shares)	76.8	66.8	76.9	65.0
Diluted (in shares)	78.0	67.8	77.8	66.6