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ACQUISITION (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 01, 2023 | Jun. 30, 2023 | Jun. 30, 2023 | Jun. 30, 2022 | Sep. 30, 2022
ACQUISITION |  |  |  |  |
Payments to acquire businesses net of cash acquired |  |  | $ 17,694 | $ 15,592 |
Goodwill |  | $ 505,590 | $ 505,590 |  | $ 492,709
Working capital settlement |  | $ 200 |  |  |
CMT Materials, LLC and its affiliate Engineered Syntactic Systems, LLC |  |  |  |  |
ACQUISITION |  |  |  |  |
Payments to acquire businesses net of cash acquired | $ 18,000 |  |  |  |
Fair value of accounts receivable acquired | 1,700 |  |  |  |
Fair value of inventory acquired | 3,000 |  |  |  |
Fair value of property, plant and equipment acquired | 1,300 |  |  |  |
Fair value of accounts payable and accrued expenses acquired | 1,200 |  |  |  |
Fair value of identifiable intangible assets acquired | 7,300 |  |  |  |
Goodwill | 5,600 |  |  |  |
Customer relationships | CMT Materials, LLC and its affiliate Engineered Syntactic Systems, LLC |  |  |  |  |
ACQUISITION |  |  |  |  |
Business combination recognized identifiable assets acquired and liabilities assumed finite-lived intangibles | $ 6,200 |  |  |  |

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