SEGMENT REPORTING - Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Segment Reporting [Line Items]
Total parent assets	$ 86,318	$ 117,617
Total assets	791,529	770,956
Long-lived tangible assets	217,464	211,996
Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	2,238	2,809
Intellectual property operations
Segment Reporting [Line Items]
Total assets	308,488	258,335
Long-lived tangible assets	58	83
Intellectual property operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	0	0
Industrial operations
Segment Reporting [Line Items]
Total assets	51,974	50,866
Long-lived tangible assets	729	848
Industrial operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	187	605
Energy operations
Segment Reporting [Line Items]
Total assets	222,686	216,806
Long-lived tangible assets	198,736	192,242
Energy operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	0	0
Manufacturing Operations
Segment Reporting [Line Items]
Total assets	122,063	127,332
Long-lived tangible assets	17,941	18,823
Manufacturing Operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	$ 2,051	$ 2,204