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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2021
Commitments And Contingencies Disclosure [Abstract]  
Schedule of Potential Milestone Amounts and Accruals The table below shows our commitment for the potential milestone amounts and the accruals for milestones deemed probable of achievement as of September 30, 2021.

 

 

 

Potential Fixed Monetary
Amount

 

 

Accrued
Amount (1)

 

Settlement Type

 

(in thousands)

 

Cash

 

$

10,799

 

 

$

985

 

Stock (2)

 

 

121,128

 

 

 

11,973

 

Cash or stock at our sole discretion

 

 

108,928

 

 

 

3,949

 

Total

 

$

240,855

 

 

$

16,907

 
(1)
Amount recorded for performance-based milestone awards that are probable of achievement.
(2)
Includes the performance-based milestone awards that were granted as part of the Exchange Program further discussed in Note 15.