INVENTORIES - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Inventory [Line Items] | ||||
| Write-down of inventory | $ 4,943 | $ 115 | ||
| Auryxia Drug Substance | ||||
| Inventory [Line Items] | ||||
| Write-down of inventory | $ 1,700 | $ 0 | $ 4,900 | $ 100 |