Goodwill and Intangible Assets - Schedule of Aggregate Amortization Expense for Intangible Assets with Finite Lives (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 11,440	$ 10,363
Cost of revenue	8,300	9,566
Total amortization expense	$ 19,740	$ 19,929