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Goodwill and Acquired Intangible Assets - Current and Expected Amortization Expense for Acquired Intangible Assets (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |  |  |
Amortization of acquired intangible assets | $ 91,719 | $ 7,433 | $ 200,904 | $ 22,335 |
Expected for the remainder of fiscal year 2024 | 91,395 |  | 91,395 |  |
Expected for fiscal year 2025 | 364,819 |  | 364,819 |  |
Expected for fiscal year 2026 | 364,667 |  | 364,667 |  |
Expected for fiscal year 2027 | 295,938 |  | 295,938 |  |
Expected for fiscal year 2028 | 285,005 |  | 285,005 |  |
Expected for fiscal year 2029 | 284,260 |  | 284,260 |  |
Thereafter | 1,087,581 |  | 1,087,581 |  |
Other acquired intangible assets, net | $ 2,773,665 |  | $ 2,773,665 |  | $ 201,205

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- Definition Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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