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. 26, 2021		$ 15.2
Redeemable Noncontrolling Interest
Net Income (loss)		0.3
Balance, end of period at Jun. 26, 2022		7.8
Balance, beginning of period (in shares) at Dec. 26, 2021			124,000,000.0
Balance, beginning of period at Dec. 26, 2021	$ 945.1		$ 0.0	$ 1,578.9	$ 0.6	$ (634.4)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	13.3			13.3
Issuance of common stock for employee stock purchase plan and stock options (in shares)			200,000
Issuance of common stock for employee stock purchase plan and stock options	2.9			2.9
Restricted stock issued and related taxes (in shares)			900,000
Restricted stock issued and related taxes	(11.5)			(11.5)
Issuance of common stock for acquisitions (in shares)			300,000
Issuance of common stock for acquisitions	5.0			5.0
Net Income (loss)	(20.6)					(20.6)
Other comprehensive income (loss), net of tax	(0.6)				(0.6)
Changes in noncontrolling interest (in shares)			200,000
Changes in noncontrolling interest	4.5	(7.7)
Balance, end of period (in shares) at Jun. 26, 2022			125,600,000
Balance, end of period at Jun. 26, 2022	938.1		$ 0.0	1,593.1	0.0	(655.0)
Balance, beginning of period at Mar. 27, 2022		15.2
Redeemable Noncontrolling Interest
Net Income (loss)		0.3
Balance, end of period at Jun. 26, 2022		7.8
Balance, beginning of period (in shares) at Mar. 27, 2022			124,800,000
Balance, beginning of period at Mar. 27, 2022	932.3		$ 0.0	1,582.0	0.6	(650.3)
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	6.4			6.4
Restricted stock issued and related taxes (in shares)			300,000
Restricted stock issued and related taxes	(4.8)			(4.8)
Issuance of common stock for acquisitions (in shares)			300,000
Issuance of common stock for acquisitions	5.0			5.0
Net Income (loss)	(4.7)					(4.7)
Other comprehensive income (loss), net of tax	(0.6)				(0.6)
Changes in noncontrolling interest (in shares)			200,000
Changes in noncontrolling interest	4.5	(7.7)		4.5
Balance, end of period (in shares) at Jun. 26, 2022			125,600,000
Balance, end of period at Jun. 26, 2022	$ 938.1		$ 0.0	1,593.1	0.0	(655.0)
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	125,985,306		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)
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			3.2
Balance, end of period (in shares) at Jun. 25, 2023	127,641,905		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)
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	127,641,905		127,600,000
Balance, end of period at Jun. 25, 2023	$ 945.6		$ 0.0	$ 1,623.7	$ 2.9	$ (681.0)