Discontinued Operations (Details) - RX - Discontinued Operations, Disposed of by Sale - USD ($)		3 Months Ended	6 Months Ended
	Jul. 06, 2021	Jul. 03, 2021	Jul. 03, 2021
Discontinued Operations
Separation costs		$ 2,400,000	$ 11,700,000
Subsequent Event
Discontinued Operations
Total consideration	$ 1,550,000,000
Potential R&D milestone payments and contingent purchase obligations assumed by purchaser	$ 53,000,000.0
Transition service period	24 months
Supply agreement term	4 years
Supply agreement, extension period	7 years
Aggregate cap on buyer's obligation for certain pre-closing liabilities (percent)	50.00%
Aggregate cap on buyer's obligation for certain pre-closing liabilities	$ 50,000,000.0