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DISCONTINUED OPERATIONS - Balance sheets information of discontinued operations (Details) - Discontinued Operations, Held-for-sale - USD ($) $ in Thousands | Sep. 30, 2021 | Sep. 30, 2020
--- | --- | ---
CURRENT ASSETS |  |
OTHER ASSETS | $ 0 | $ 79,952
Total assets of discontinued operations | 273,414 | 325,678
Defense Electronics |  |
CURRENT ASSETS |  |
Accounts receivable, net | 42,020 | 62,127
Contract assets, net of progress payments | 72,983 | 84,426
Inventories | 83,970 | 93,637
Prepaid and other current assets | 4,409 | 5,536
PROPERTY, PLANT AND EQUIPMENT, net | 45,371 | 46,880
OPERATING LEASE RIGHT-OF-USE ASSETS | 1,167 | 7,278
GOODWILL | 17,734 | 18,545
INTANGIBLE ASSETS, net | 131 | 826
OTHER ASSETS | 5,629 | 6,423
Total assets of discontinued operations | 273,414 | 325,678
CURRENT LIABILITIES |  |
Accounts payable | 60,486 | 59,724
Accrued liabilities | 15,153 | 20,023
Current portion of operating lease liabilities | 287 | 2,176
LONG-TERM OPERATING LEASE LIABILITIES | 867 | 5,466
OTHER LIABILITIES | 3,955 | 4,972
Total liabilities of discontinued operations | $ 80,748 | $ 92,361

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