BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Sep. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Estimated Useful Lives

Depreciation is calculated using the straight-line method over the estimated useful lives of the related assets as follows:

Buildings	4 to 40 years
Building improvements	3 to 20 years
Machinery and equipment	1 to 20 years
Leasehold improvements	Lesser of remaining term of the lease or useful life
Software	2 to 10 years

As of September 30, 2024 and September 30, 2023, property, plant and equipment at cost and accumulated depreciation were as follows:

(in thousands)	September 30, 2024		September 30, 2023
Land	$	29,401	$	29,082
Buildings and related improvements	192,569		182,760
Machinery and equipment	596,748		513,563
Leasehold improvements	22,814		15,910
Software	57,363		47,072
Construction in progress	248,128		206,311
Property, plant and equipment, at cost	1,147,023		994,698
Accumulated depreciation	(494,930)		(435,657)
Property, plant and equipment, net	$	652,093	$	559,041