CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balance at the beginning of period (in shares) at Jun. 29, 2024		67.9
Balance at the beginning of the period at Jun. 29, 2024	$ 957.3	$ 0.1	$ 1,835.0	$ (887.1)	$ 9.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(82.4)			(82.4)
Other comprehensive income (loss)	2.3				2.3
Issuance of shares in connection with vesting of restricted stock units and performance stock units (in shares)		0.9
Withholding taxes related to net share settlement of restricted stock units (in shares)		(0.3)
Withholding taxes related to net share settlement of restricted stock units	(16.0)		(16.0)
Exercise of stock options (in shares)		0.1
Exercise of stock options	0.9		0.9
Stock-based compensation	33.8		33.8
Balance at the end of period (in shares) at Sep. 28, 2024		68.6
Balance at the end of the period at Sep. 28, 2024	895.9	$ 0.1	1,853.7	(969.5)	11.6
Balance at the beginning of period (in shares) at Jun. 29, 2024		67.9
Balance at the beginning of the period at Jun. 29, 2024	957.3	$ 0.1	1,835.0	(887.1)	9.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(143.3)
Other comprehensive income (loss)	0.9
Balance at the end of period (in shares) at Dec. 28, 2024		69.1
Balance at the end of the period at Dec. 28, 2024	872.3	$ 0.1	1,892.4	(1,030.4)	10.2
Balance at the beginning of period (in shares) at Sep. 28, 2024		68.6
Balance at the beginning of the period at Sep. 28, 2024	895.9	$ 0.1	1,853.7	(969.5)	11.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(60.9)			(60.9)
Other comprehensive income (loss)	(1.4)				(1.4)
Issuance of shares in connection with vesting of restricted stock units and performance stock units (in shares)		0.3
Withholding taxes related to net share settlement of restricted stock units (in shares)		(0.1)
Withholding taxes related to net share settlement of restricted stock units	(7.8)		(7.8)
Exercise of stock options (in shares)		0.1
Exercise of stock options	1.1		1.1
ESPP shares issued (in shares)		0.2
ESPP shares issued	6.1		6.1
Stock-based compensation	39.3		39.3
Balance at the end of period (in shares) at Dec. 28, 2024		69.1
Balance at the end of the period at Dec. 28, 2024	$ 872.3	$ 0.1	1,892.4	(1,030.4)	10.2
Balance at the beginning of period (in shares) at Jun. 28, 2025	69.8	69.8
Balance at the beginning of the period at Jun. 28, 2025	$ 1,134.7	$ 0.1	1,986.8	(861.2)	9.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4.2			4.2
Other comprehensive income (loss)	0.1				0.1
Issuance of shares in connection with vesting of restricted stock units and performance stock units (in shares)		1.3
Withholding taxes related to net share settlement of restricted stock units (in shares)		(0.4)
Withholding taxes related to net share settlement of restricted stock units	(47.4)		(47.4)
Exercise of stock options (in shares)		0.2
Exercise of stock options	1.5		1.5
Stock-based compensation	46.4		46.4
Fair value of incremental consideration on partial repurchase of 2026 Notes	(256.9)		(256.9)
Capped call options related to 2032 Notes, net of tax	(101.8)		(101.8)
Balance at the end of period (in shares) at Sep. 27, 2025		70.9
Balance at the end of the period at Sep. 27, 2025	$ 780.8	$ 0.1	1,628.6	(857.0)	9.1
Balance at the beginning of period (in shares) at Jun. 28, 2025	69.8	69.8
Balance at the beginning of the period at Jun. 28, 2025	$ 1,134.7	$ 0.1	1,986.8	(861.2)	9.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	82.4
Other comprehensive income (loss)	$ 0.4
Balance at the end of period (in shares) at Dec. 27, 2025	71.4	71.4
Balance at the end of the period at Dec. 27, 2025	$ 846.6	$ 0.1	1,615.9	(778.8)	9.4
Balance at the beginning of period (in shares) at Sep. 27, 2025		70.9
Balance at the beginning of the period at Sep. 27, 2025	780.8	$ 0.1	1,628.6	(857.0)	9.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	78.2			78.2
Other comprehensive income (loss)	0.3				0.3
Issuance of shares in connection with vesting of restricted stock units and performance stock units (in shares)		0.5
Withholding taxes related to net share settlement of restricted stock units (in shares)		(0.2)
Withholding taxes related to net share settlement of restricted stock units	(60.0)		(60.0)
Exercise of stock options (in shares)		0.1
Exercise of stock options	0.7		0.7
ESPP shares issued (in shares)		0.1
ESPP shares issued	6.5		6.5
Stock-based compensation	39.2		39.2
Capped call options related to 2032 Notes, net of tax	$ 0.9		0.9
Balance at the end of period (in shares) at Dec. 27, 2025	71.4	71.4
Balance at the end of the period at Dec. 27, 2025	$ 846.6	$ 0.1	$ 1,615.9	$ (778.8)	$ 9.4