Goodwill and Acquired Intangible Assets - Additional Information (Details) $ in Millions	Sep. 30, 2023 USD ($)
Estimated aggregate future amortization expense for intangible assets, 2024	$ 79.8
Estimated aggregate future amortization expense for intangible assets, 2025	76.6
Estimated aggregate future amortization expense for intangible assets, 2026	76.5
Estimated aggregate future amortization expense for intangible assets, 2027	75.9
Estimated aggregate future amortization expense for intangible assets, 2028	72.8
Estimated aggregate future amortization expense for intangible assets, thereafter	$ 559.6