(Schedule of Reconciliation of Changes in Fair Value of Contingent Consideration) (Details) - USD ($) $ in Millions	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 29, 2023	Nov. 14, 2023	Dec. 27, 2024	Jun. 16, 2022
Reorganization, Chapter 11, Plan Effect Adjustment
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration				$ (41.8)
Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration	$ 14.7	$ 15.0	$ 17.5
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent consideration	14.7		17.5
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Contingent Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	15.0	7.3
Ending balance		15.0	14.7
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	$ (0.3)	(7.2)	$ 2.8
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Recurring | Contingent Liabilities [Member] | Reorganization, Chapter 11, Fresh-Start Adjustment
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fresh-Start Adjustment, Terlivaz CVR		14.9
StrataGraft CVR | Reorganization, Chapter 11, Plan Effect Adjustment
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability		$ 14.9		$ 6.8