Financial Instruments and Fair Value Measurements (Schedules of Concentration of Risk) (Details)	3 Months Ended		12 Months Ended
	Apr. 01, 2022	Mar. 26, 2021	Dec. 31, 2021
Distributor Concentration Risk | Revenue from Contract with Customer Benchmark [Member] | CuraScript, Inc
Concentration Risk
Concentration Risk, Percentage	26.00%	24.90%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | Amerisource Bergen Corporation [Member]
Concentration Risk
Concentration Risk, Percentage	29.20%		30.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | McKesson Corporation [Member]
Concentration Risk
Concentration Risk, Percentage	16.80%		15.00%
Distributor Concentration Risk | Accounts Receivable Attributable to Distributors | CuraScript, Inc
Concentration Risk
Concentration Risk, Percentage			12.70%
Product Concentration Risk | Net Sales Attributable to Products | Acthar
Concentration Risk
Concentration Risk, Percentage	26.00%	23.10%
Product Concentration Risk | Net Sales Attributable to Products | Inomax
Concentration Risk
Concentration Risk, Percentage	20.20%	24.00%
Product Concentration Risk | Net Sales Attributable to Products | Therakos [Member]
Concentration Risk
Concentration Risk, Percentage	12.20%	12.00%