SEGMENT REPORTING - Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	$ 209,846	$ 215,545
Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	105	126
Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	1,042	1,244
Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	188,237	192,435
Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	20,462	21,740
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	195,595	200,466
United States | Intellectual property operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	105	126
United States | Industrial operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	197	220
United States | Energy operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	188,237	192,435
United States | Manufacturing Operations
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	7,056	7,685
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	7,359	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	615	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	6,744	7,225
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	4,497	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	230	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	4,267	4,257
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived tangible assets	2,395	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	0	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	$ 2,395	$ 2,573