Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 26, 2025	Sep. 27, 2024
Cash Flows From Operating Activities:
Net loss	$ (316.4)	$ (134.9)
Adjustments to reconcile net cash from operating activities:
Depreciation and amortization	107.2	93.5
Share-based compensation	35.4	3.8
Deferred income taxes	(47.4)	22.9
Loss on divestiture (Note 3)	5.9	0.0
Gain on debt extinguishment, net (Note 11)	(4.6)	0.0
Inventory step-up amortization related to Business Combination	116.3	0.0
Inventory provisions	27.6	17.0
Non-cash accretion (amortization) expense	4.6	(3.6)
Other non-cash items	14.0	1.9
Changes in assets and liabilities:
Accounts receivable, net	(3.3)	(16.5)
Inventories	125.5	222.1
Accounts payable	14.0	(5.6)
Income taxes	15.9	(7.1)
Acthar Gel-Related Litigation Settlement liability	(21.3)	(21.4)
Other	53.0	13.6
Net cash from operating activities	126.4	185.7
Cash Flows From Investing Activities:
Capital expenditures	(70.8)	(71.5)
Receipts of unrestricted cash, net of payments related to the Business Combination (Note 3)	333.4	0.0
Receipts of restricted cash related to Business Combination (Note 3)	93.4	0.0
Payments related to divestitures (Note 3)	(6.2)	0.0
Proceeds from life insurance contracts	14.0	0.0
Proceeds from debt and equity securities	0.0	22.6
Other	3.8	4.2
Net Cash From Investing Activities	367.6	(44.7)
Cash Flows From Financing Activities:
Issuance of external debt	1,200.0	0.0
Repayment of external debt	(869.4)	(4.4)
Makewhole premium (Note 11)	(24.3)	0.0
Debt financing costs	(40.1)	0.0
Repurchase of shares	(1.9)	0.0
Payment of contingent consideration	(1.8)	0.0
Other	(0.6)	(0.4)
Net cash from financing activities	261.9	(4.8)
Effect of currency rate changes on cash	1.4	(0.6)
Net change in cash, cash equivalents and restricted cash, including cash classified within assets held for sale	757.3	135.6
Less: Net change in cash classified within assets held for sale	0.0	(3.0)
Net change in cash, cash equivalents and restricted cash	757.3	132.6
Cash, cash equivalents and restricted cash at beginning of period	445.7	343.4
Cash, cash equivalents and restricted cash at end of period	1,203.0	476.0
Cash and cash equivalents	1,047.9	410.5
Restricted cash included in prepaid expenses and other current assets at end of period (Note 12)	113.2	23.9
Restricted cash included in other long-term assets at end of period (Note 12)	$ 41.9	$ 41.6