Quarterly report pursuant to Section 13 or 15(d)

Licenses Acquired (Narrative) (Details)

v3.21.2
Licenses Acquired (Narrative) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 29, 2021
Jun. 29, 2021
Apr. 01, 2021
Sep. 30, 2021
Dec. 31, 2020
Journey [Member] | Contingent Payment Warrant [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Warrants, fair value       $ 3.8 $ 0.0
Journey [Member] | Licensing Agreements [Member] | Dr. Reddy's Laboratories, Ltd [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Upfront fees payment   $ 10.0      
Payments of milestones   2.0      
Maintenance fees   24.0      
Journey [Member] | Licensing Agreements [Member] | Dr. Reddy's Laboratories, Ltd [Member] | Achievement of Certain Clinical Development, Regulatory and First Commercial Sale milestones [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Payments of milestones   $ 163.0      
Journey [Member] | Licensing Agreements [Member] | Dr. Reddy's Laboratories, Ltd [Member] | Payable 90 days Following the Effective Date [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Payments of milestones $ 8.0        
Journey [Member] | Licensing Agreements [Member] | Minimum [Member] | Dr. Reddy's Laboratories, Ltd [Member] | Payable on Net Sales of the DFD-29 Product [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Sales royalties (as a percent)   10.00%      
Journey [Member] | Licensing Agreements [Member] | Maximum [Member] | Dr. Reddy's Laboratories, Ltd [Member] | Payable on Net Sales of the DFD-29 Product [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Sales royalties (as a percent)   15.00%      
Mustang [Member] | Licensing Agreements [Member] | Mayo Clinic [Member]          
Research and Development Arrangement, Contract to Perform for Others [Line Items]          
Upfront fees payment     $ 0.8 $ 0.8