CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Redeemable Noncontrolling Interest	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance, beginning of period at Dec. 25, 2022		$ 11.2
Redeemable Noncontrolling Interest
Net income (loss)		3.5
Balance, end of period at Jun. 25, 2023		14.7
Balance, beginning of period (in shares) at Dec. 25, 2022			126,000,000.0
Balance, beginning of period at Dec. 25, 2022	$ 936.3		$ 0.0	$ 1,608.4	$ (0.8)	$ (671.3)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	12.6			12.6
Issuance of common stock for employee stock purchase plan and stock options (in shares)			300,000
Issuance of common stock for employee stock purchase plan and stock options	2.9			2.9
Restricted stock issued and related taxes (in shares)			500,000
Restricted stock issued and related taxes	(3.4)			(3.4)
Gain on interest rate swap contract	1.8
Net income (loss)	(9.7)					(9.7)
Other comprehensive income (loss), net of tax	3.7				3.7
Changes in noncontrolling interest (in shares)			800,000
Changes in noncontrolling interest	3.2	0.0		3.2
Balance, end of period (in shares) at Jun. 25, 2023			127,600,000
Balance, end of period at Jun. 25, 2023	945.6		$ 0.0	1,623.7	2.9	(681.0)
Balance, beginning of period at Mar. 26, 2023		12.4
Redeemable Noncontrolling Interest
Net income (loss)		2.3
Balance, end of period at Jun. 25, 2023		14.7
Balance, beginning of period (in shares) at Mar. 26, 2023			126,700,000
Balance, beginning of period at Mar. 26, 2023	931.2		$ 0.0	1,610.0	(0.5)	(678.3)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	6.0			6.0
Restricted stock issued and related taxes (in shares)			100,000
Restricted stock issued and related taxes	(0.8)			(0.8)
Gain on interest rate swap contract	1.8
Net income (loss)	(2.7)					(2.7)
Other comprehensive income (loss), net of tax	3.4				3.4
Changes in noncontrolling interest (in shares)			800,000
Changes in noncontrolling interest	8.5			8.5
Balance, end of period (in shares) at Jun. 25, 2023			127,600,000
Balance, end of period at Jun. 25, 2023	$ 945.6		$ 0.0	1,623.7	2.9	(681.0)
Balance, beginning of period at Dec. 31, 2023		22.5
Balance, end of period at Jun. 30, 2024		0.0
Balance, beginning of period (in shares) at Dec. 31, 2023	129,286,964		129,300,000
Balance, beginning of period at Dec. 31, 2023	$ 976.0		$ 0.0	1,654.5	1.7	(680.2)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	15.8			15.8
Issuance of common stock for employee stock purchase plan and stock options (in shares)			300,000
Issuance of common stock for employee stock purchase plan and stock options	3.6			3.6
Restricted stock issued and related taxes (in shares)			1,300,000
Restricted stock issued and related taxes	(17.1)			(17.1)
Issuance of common stock for equity raise (in shares)			19,200,000
Issuance of common stock for equity raise	330.7		$ 0.2	330.5
Gain on interest rate swap contract	1.3				1.3
Net income (loss)	9.2					9.2
Other comprehensive income (loss), net of tax	(1.5)				(1.5)
Changes in noncontrolling interest (in shares)			600,000
Changes in noncontrolling interest	$ 11.3	(22.5)		11.3
Balance, end of period (in shares) at Jun. 30, 2024	150,729,318		150,700,000
Balance, end of period at Jun. 30, 2024	$ 1,329.3		$ 0.2	1,998.6	1.5	(671.0)
Balance, beginning of period at Mar. 31, 2024		22.5
Balance, end of period at Jun. 30, 2024		0.0
Balance, beginning of period (in shares) at Mar. 31, 2024			150,000,000.0
Balance, beginning of period at Mar. 31, 2024	1,306.1		$ 0.2	1,982.7	2.1	(678.9)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	6.6			6.6
Restricted stock issued and related taxes (in shares)			100,000
Restricted stock issued and related taxes	(2.0)			(2.0)
Gain on interest rate swap contract	0.0
Net income (loss)	7.9					7.9
Other comprehensive income (loss), net of tax	(0.6)				(0.6)
Changes in noncontrolling interest (in shares)			600,000
Changes in noncontrolling interest	$ 11.3	$ (22.5)		11.3
Balance, end of period (in shares) at Jun. 30, 2024	150,729,318		150,700,000
Balance, end of period at Jun. 30, 2024	$ 1,329.3		$ 0.2	$ 1,998.6	$ 1.5	$ (671.0)