SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024	Dec. 31, 2023
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable			$ 26,900	$ 80,600
Allowance for doubtful accounts and sales returns			1,300	$ 56
Loans receivable	$ 0	$ 3,392
Manufacturing Operations | Deflecto Holdco LLC
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for doubtful accounts and sales returns		653	$ 669
Customer rebates	$ 4,200	3,900
Printronix | Industrial operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for doubtful accounts and sales returns		425
Printronix | Energy operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for doubtful accounts and sales returns		$ 225