Goodwill and Intangible Assets - Schedule of Aggregate Amortization Expense for Intangible Assets with Finite Lives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 10,672	$ 10,670	$ 31,459	$ 29,352
Cost of revenue	9,685	9,841	28,835	25,817
Total amortization expense	$ 20,357	$ 20,511	$ 60,294	$ 55,169