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Related Party Transactions (Details) ft² in Thousands		3 Months Ended			9 Months Ended		61 Months Ended
	Sep. 24, 2024	Sep. 27, 2025 USD ($)	Mar. 29, 2025 USD ($)	Sep. 28, 2024 USD ($)	Sep. 27, 2025 USD ($)	Sep. 28, 2024 USD ($)	Dec. 31, 2024 ft²	Dec. 28, 2024 USD ($)	Oct. 24, 2024 USD ($)	Sep. 19, 2024 director	Jun. 26, 2023 director
Related Party Transaction [Line Items]
License fee, change in control									$ 2,500,000
Change in control		$ 15,000,000			$ 15,000,000				15,000,000
Additional change in control									$ 2,000,000
Prepaid rebates and royalties, current		4,800,000			4,800,000			$ 4,600,000
Total revenue		371,500,000		$ 343,300,000	1,114,400,000	$ 1,026,800,000
Willow Laboratories
Related Party Transaction [Line Items]
Payment for administrative fees		0		200,000	100,000	400,000
Sublease income		0		300,000	0	900,000
Leased Property
Related Party Transaction [Line Items]
Property plant and equipment, occupied square feet | ft²							34
Related Party
Related Party Transaction [Line Items]
Other current liabilities, related party		4,200,000			4,200,000			5,300,000
Total revenue		28,400,000		27,200,000	86,000,000.0	82,900,000
Accounts receivable net current		7,600,000			7,600,000			14,300,000
Related Party | Willow Laboratories
Related Party Transaction [Line Items]
Royalty expense invoiced		5,500,000		4,200,000	16,100,000	13,200,000
Prepaid rebates and royalties, current		4,300,000			4,300,000
Other current liabilities, related party		4,100,000			4,100,000			4,900,000
Related Party | Not for Profit Organization
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction (less than)		0		1,500,000	0	2,500,000
Related Party | Like Minded Media Ventures
Related Party Transaction [Line Items]
Other current liabilities, related party								0
Related party transaction, amounts of transaction (less than)				0		0
Related Party | Politan
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction (less than)		$ 100,000		0	100,000	0
Number of directors | director										2	2
Related party transaction, percentage of outstanding shares	8.80%
Legal fees					2,000,000
Related Party | Cardinal Health
Related Party Transaction [Line Items]
Accounts receivable net current								$ 14,300,000
Chief Executive Officer | Reimbursement Fee
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction (less than)				$ 100,000		$ 100,000
Minimum | Related Party
Related Party Transaction [Line Items]
Payments for royalties					$ 5,000,000
Minimum | Related Party | Willow Laboratories
Related Party Transaction [Line Items]
Payments for royalties			$ 12,800,000

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