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PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION (CONDENSED STATEMENTS OF CASH FLOWS) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION      
Net cash generated from operating activities $ (9,991) $ (16,061) $ 2,743
Net cash generated from (used in) investing activities (41,851) 70,855 23,864
Net cash used in financing activities 33,356 (340,836) (90,691)
Net increase (decrease) in cash, cash equivalents and restricted cash (19,922) (287,506) (62,657)
Effect of foreign currency exchange rate changes on cash, cash equivalents and restricted cash (1,436) (1,464) 1,427
Cash, cash equivalents and restricted cash at beginning of year 110,359 397,865 460,522
Cash, cash equivalents and restricted cash at end of year 90,437 110,359 397,865
Parent Company      
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION      
Net cash generated from operating activities 86,652 146,815 52,462
Net cash generated from (used in) investing activities (14,477) (176) 22,149
Net cash used in financing activities (52,790) (162,929) (99,804)
Net increase (decrease) in cash, cash equivalents and restricted cash 19,385 (16,294) (25,193)
Effect of foreign currency exchange rate changes on cash, cash equivalents and restricted cash   (4)  
Cash, cash equivalents and restricted cash at beginning of year 2,926 19,220 44,413
Cash, cash equivalents and restricted cash at end of year $ 22,311 $ 2,926 $ 19,220