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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedules of Concentration of Risk, by Risk Factor
The following table indicates the percentage of total revenues in excess of 10% with any single customer:
Year Ended December 31,
202220212020
Partner A20%25%35%
Partner B46%48%26%
Partner C—%—%11%
Partner D—%10%—%
We attribute revenues under collaborative agreements, including royalties, to the individual countries where the customer is headquartered. We attribute revenues from product sales to the individual countries to which the product is shipped. Worldwide revenues from external customers are summarized by geographic location in the following table (in thousands):
Year Ended December 31,
202220212020
United States$437,989 $293,089 $106,918 
Switzerland166,836 134,117 95,949 
Ireland14 30,552 
Belgium2,088 199 20,086 
Japan47,939 11,934 10,644 
All other foreign5,261 3,957 3,445 
Total revenues$660,116 $443,310 $267,594