SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025
Restricted Cash and Cash Equivalent Item [Line Items]
Restricted cash, current portion	$ 14,309	$ 4,717
Restricted cash, long-term portion	40,669	40,466
Total restricted cash	54,978	45,183	$ 36,683
Restricted cash related to debt financing
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash	10,264	9,489
Restricted cash related to customer and owned projects
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash	42,355	33,002
Other
Restricted Cash and Cash Equivalent Item [Line Items]
Total restricted cash	$ 2,359	$ 2,692

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.