Restructuring - Roll Forward (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 1,011	$ 462
Provisions	3,231	2,961
Payments	(1,760)	(2,139)
Balance at end of period	$ 2,482	$ 1,284