Goodwill and Intangible Assets - Schedule of Aggregate Amortization Expense for Intangible Assets with Finite Lives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 11,380	$ 10,424	$ 22,820	$ 20,787
Cost of revenue	8,131	9,584	16,431	19,150
Total amortization expense	$ 19,511	$ 20,008	$ 39,251	$ 39,937