v3.26.1
PRODUCT REVENUE AND PROVISIONS FOR VARIABLE CONSIDERATION - Schedule of Product Revenues (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total revenues $ 49,128 $ 62,472 $ 102,672 $ 119,808
Product revenue, net        
Disaggregation of Revenue [Line Items]        
Total revenues 46,765 60,461 98,757 116,252
Vafseo        
Disaggregation of Revenue [Line Items]        
Total revenues 21,302 13,279 37,104 25,313
Auryxia        
Disaggregation of Revenue [Line Items]        
Total revenues $ 25,463 $ 47,182 $ 61,653 $ 90,939