SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Cash and cash equivalents	$ 6,595	$ 1,279
Restricted cash	0	7,044
Cash and cash equivalents and restricted cash	$ 6,595	$ 8,323	$ 11,731	$ 46,455