CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income	Non-Controlling Interest Redeemable Convertible Series A Preferred Stock
Beginning balance (in shares) at Jun. 30, 2018								0.0
Beginning balance at Jun. 30, 2018								$ 35.8
Increase (Decrease) in Non-Controlling Interest Redeemable Convertible Series A Preferred Stock
Conversion of preferred stock to common stock								$ (35.8)
Ending balance (in shares) at Jun. 29, 2019								0.0
Ending balance at Jun. 29, 2019								$ 0.0
Balance at the beginning of period (in shares) at Jun. 30, 2018			62.8
Balance at the beginning of the period at Jun. 30, 2018	$ 926.1	$ (0.6)	$ 0.1	$ 753.2	$ 166.4	$ (0.6)	$ 6.4
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(36.4)				(36.4)
Other comprehensive income	0.7						0.7
Declared dividend for preferred stock	(0.3)				(0.3)
Issuance of shares pursuant to equity plans, net of tax withholdings (in shares)			1.1
Issuance of shares pursuant to equity plans, net of tax withholdings	(0.4)			(0.4)
Issuance of shares pursuant to merger agreement, net of tax withholdings (in shares)			11.0
Issuance of shares pursuant to merger agreement, net of tax withholdings	460.1			460.1
ESPP shares issued (in shares)			0.3
ESPP shares issued	9.3			9.3
Stock-based compensation	59.2			59.2
Conversion of preferred stock to common stock (in shares)			1.5
Conversion of preferred stock to common stock	79.4			79.4
Balance at the end of period (in shares) at Jun. 29, 2019			76.7
Balance at the end of the period at Jun. 29, 2019	1,497.1		$ 0.1	1,360.8	129.1		7.1
Ending balance (in shares) at Jun. 27, 2020								0.0
Ending balance at Jun. 27, 2020								$ 0.0
Increase (Decrease) in Stockholders' Equity
Net income (loss)	135.5				135.5
Other comprehensive income	0.8						0.8
Issuance of shares pursuant to equity plans, net of tax withholdings (in shares)			1.1
Issuance of shares pursuant to equity plans, net of tax withholdings	(14.0)			(14.0)
Exercise of stock options	0.7			0.7
Equity component of the 2026 Notes, net of tax of $67.0 million and issuance costs of $2.3 million	245.9			245.9
ESPP shares issued (in shares)			0.2
ESPP shares issued	9.9			9.9
Repurchases of common stock (in shares)			(2.9)
Repurchases of common stock	(200.0)				(200.0)
Stock-based compensation	73.3			73.3
Balance at the end of period (in shares) at Jun. 27, 2020			75.1
Balance at the end of the period at Jun. 27, 2020	1,749.2		$ 0.1	1,676.6	64.6		7.9
Ending balance (in shares) at Jul. 03, 2021								0.0
Ending balance at Jul. 03, 2021								$ 0.0
Increase (Decrease) in Stockholders' Equity
Net income (loss)	397.3				397.3
Other comprehensive income	0.3						0.3
Issuance of shares pursuant to equity plans, net of tax withholdings (in shares)			0.8
Issuance of shares pursuant to equity plans, net of tax withholdings	(39.7)			(39.7)
Exercise of stock options	0.2			0.2
ESPP shares issued (in shares)			0.2
ESPP shares issued	12.6			12.6
Repurchases of common stock (in shares)			(3.1)
Repurchases of common stock	(241.0)				(241.0)
Stock-based compensation	93.9			93.9
Balance at the end of period (in shares) at Jul. 03, 2021			73.0
Balance at the end of the period at Jul. 03, 2021	$ 1,972.8		$ 0.1	$ 1,743.6	$ 220.9		$ 8.2