Segment Information - Long-lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	$ 167,113	$ 170,422
United States
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	122,184	125,736
Other Americas
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	2,349	2,592
Total Americas
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	124,533	128,328
EMEA
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	25,109	24,336
APAC
Schedule of Long-lived Assets by Geographic Region [Line Items]
Property, Plant and Equipment, Net	$ 17,471	$ 17,758