Goodwill - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Mar. 31, 2025	Jun. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Jan. 17, 2023
Goodwill [Line Items]
Impairment of goodwill	$ 20,400		$ 20,353	$ 6,370
Goodwill			908	21,261
Semiconductor Fabrication Solutions
Goodwill [Line Items]
Impairment of goodwill		$ 15,400	$ 15,356
Goodwill				$ 15,356
Semiconductor Fabrication Solutions | Entrepix, Inc.
Goodwill [Line Items]
Goodwill					$ 16,500