v3.26.3
SHARE-BASED COMPENSATION - Summary of Restricted Stock Units and PRSUs Activity (Details) - $ / shares
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Non-vested restricted stock units    
SHARE-BASED COMPENSATION    
Non-vested, Beginning balance   4,229,000
Granted   4,146,000
Vested   (1,339,000)
Forfeited   (2,580,000)
Non-vested, Ending balance 4,456,000 4,456,000
Weighted average Grant-date Fair Value, Non-vested, Beginning balance   $ 3.33
Weighted average Grant-date Fair Value, Granted   1.56
Weighted average Grant-date Fair Value, Vested   4.15
Weighted average Grant-date Fair Value, Forfeited   2.42
Weighted average Grant-date Fair Value, Non-vested, Ending balance $ 1.97 $ 1.97
Non-vested PRSUs    
SHARE-BASED COMPENSATION    
Non-vested, Beginning balance   1,398,000
Granted 0 0
Vested   (143,000)
Forfeited   (846,000)
Non-vested, Ending balance 409,000 409,000
Weighted average Grant-date Fair Value, Non-vested, Beginning balance   $ 3.81
Weighted average Grant-date Fair Value, Vested   2.9
Weighted average Grant-date Fair Value, Forfeited   3.21
Weighted average Grant-date Fair Value, Non-vested, Ending balance $ 5.45 $ 5.45