Transactions with Controlled Companies - Victor Technology, LLC (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Interest Income	$ 132,608	$ 152,394
Administrative agent fees	255	191
Total Other Income	13,658	1,657
Interest Receivable	23,039		$ 17,350
Subsidiaries \| Reportable Legal Entities \| Victor Technology, LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Interest Income	313	0
Administrative agent fees	6	0
Total Other Income	6	0
Repayment of Loan Receivable	75	$ 0
Interest Receivable	3		3
Other Receivables	$ 23		$ 17
Victor Holdings of Delaware, LLC \| Subsidiaries \| Reportable Legal Entities
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest	100.00%
VTI Acquisition, Inc \| Victor Holdings
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest			100.00%
Victor Technology, LLC \| Victor Holdings
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest	99.90%		100.00%

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