SEGMENT REPORTING - Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Segment Reporting [Line Items]
Total parent assets	$ 112,717	$ 117,617
Total assets	755,871	770,956
Long-lived tangible assets	216,110	211,996
Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	2,327	2,809
Intellectual property operations
Segment Reporting [Line Items]
Total assets	252,448	258,335
Long-lived tangible assets	70	83
Intellectual property operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	0	0
Industrial operations
Segment Reporting [Line Items]
Total assets	52,561	50,866
Long-lived tangible assets	779	848
Industrial operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	198	605
Energy operations
Segment Reporting [Line Items]
Total assets	214,593	216,806
Long-lived tangible assets	197,385	192,242
Energy operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	0	0
Manufacturing Operations
Segment Reporting [Line Items]
Total assets	123,552	127,332
Long-lived tangible assets	17,876	18,823
Manufacturing Operations | Asia Pacific
Segment Reporting [Line Items]
Long-lived tangible assets	$ 2,129	$ 2,204