Employee Stock-Based Compensation - Schedule of Time, Market and Performance-Based RSU Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
RSU
Number of Shares
Outstanding, beginning of period (in shares)	3,056	3,478	3,456
Vested (in shares)	(895)	(1,172)	(1,200)
Forfeited (in shares)	(512)	(462)	(631)
Outstanding, end of period (in shares)	2,941	3,056	3,478
Weighted-Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)	$ 73	$ 65	$ 66
Vested (in dollars per share)	72
Forfeited (in dollars per share)	72
Outstanding, end of period (in dollars per share)	$ 79	$ 73	$ 65
Aggregate Fair Value
Vested	$ 78,466	$ 113,553	$ 92,340
Granted—RSUs
Number of Shares
Granted (in shares)	1,017	931	1,396
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)	$ 84	$ 93	$ 59
Granted—PSUs
Number of Shares
Granted (in shares)	275	281	457
Outstanding, end of period (in shares)	700
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)	$ 90	$ 91	$ 67

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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