Goodwill and Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	$ 65,069	$ 66,024	$ 130,810	$ 132,239
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets estimated useful lives	2 years		2 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets estimated useful lives	12 years		12 years