Restructuring - Schedule of Amounts Incurred and Accrued Related to One-time Termination Benefits (Details) - USD ($)	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Restructuring Reserve [Roll Forward]
Restructuring charges incurred during the period	$ 61,437,000	$ 4,642,000	$ 0
One-time Termination Benefits
Restructuring Reserve [Roll Forward]
Accrued restructuring costs included in accrued expenses and other current liabilities as of March 31, 2024	0
Restructuring charges incurred during the period	10,866,000
Amounts paid during the period	(10,649,000)
Accrued restructuring costs included in accrued expenses and other current liabilities as of March 31, 2025	$ 217,000	$ 0

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4.b.2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

Name:	us-gaap_RestructuringReserveCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant