SEGMENT REPORTING - Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	$ 212,458	$ 215,545
Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	111	126
Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	1,131	1,244
Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	190,245	192,435
Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	20,971	21,740
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	197,784	200,466
United States | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	111	126
United States | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	209	220
United States | Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	190,245	192,435
United States | Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	7,219	7,685
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	7,069	7,225
CANADA | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
CANADA | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
CANADA | Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
CANADA | Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	7,069	7,225
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	4,396	4,356
Europe | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
Europe | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	224	99
Europe | Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
Europe | Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	4,172	4,257
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	3,209	3,498
Asia Pacific | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
Asia Pacific | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	698	925
Asia Pacific | Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	0	0
Asia Pacific | Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	$ 2,511	$ 2,573