DISCONTINUED OPERATIONS - Balance Sheets Information of Discontinued Operations (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
CURRENT ASSETS
Total Assets of discontinued operations held for sale	$ 171,466	$ 735,816
Defense Electronics | Discontinued Operations, Held-for-sale
CURRENT ASSETS
Cash and equivalents	0	0
Accounts receivable, net	44,454	93,850
Inventories	56,317	269,025
Prepaid and other current assets	1,804	12,282
PROPERTY, PLANT AND EQUIPMENT, net	29,981	103,187
OPERATING LEASE RIGHT-OF-USE ASSETS	12,930	114,788
GOODWILL	1,664	1,664
INTANGIBLE ASSETS, net	24,316	124,159
OTHER ASSETS	0	16,861
Total Assets of discontinued operations held for sale	171,466	735,816
CURRENT LIABILITIES
Notes payable and current portion of long-term debt	0	70
Accounts payable	20,015	79,822
Accrued liabilities	20,663	42,034
Current portion of operating lease liabilities	4,735	16,834
LONG-TERM DEBT, net	0	110
LONG-TERM OPERATING LEASE LIABILITIES	6,801	106,750
OTHER LIABILITIES	1,600	4,770
Total Liabilities of discontinued operations held for sale	$ 53,814	$ 250,390