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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(3)
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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 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.

+ References

No definition available.

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Paragraph 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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-Publisher FASB
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- Definition

Net number of non-option equity instruments granted to participants.

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-Publisher FASB
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Stock-based compensation plan - Summary of Unvested SARs (Details)	12 Months Ended
	Mar. 31, 2022 $ / shares R / $ shares	Mar. 31, 2021 $ / shares $ / R shares	Mar. 31, 2020 $ / shares $ / R	Mar. 31, 2022 $ / R	Mar. 31, 2022 $ / £	Mar. 31, 2021 $ / £	Mar. 31, 2020 $ / £
Share-based Payment Arrangement [Abstract]
Exchange rate	14.4916	14.92	17.92	14.49	0.76	0.73	0.81
SARs
Number of SARs
Unvested as of beginning of period (in shares)	28,512,500
Vested (in shares)	(7,331,250)
Forfeited (in shares)	(2,028,125)
Unvested as of end of period (in shares)	31,278,125	28,512,500
Weighted-Average Grant-Date Fair Value in U.S. Cents
Unvested as of beginning of period (in dollars per share) \| $ / shares	$ 0.17
Granted (in dollars per share) \| $ / shares	0.22	$ 0.16	$ 0.22
Vested (in dollars per share) \| $ / shares	0.13
Forfeited (in dollars per share) \| $ / shares	0.18
Unvested as of end of period (in dollars per share) \| $ / shares	$ 0.20	$ 0.17
SARs \| December 9, 2021
Number of SARs
Granted (in shares)	11,625,000
Weighted-Average Grant-Date Fair Value in U.S. Cents
Granted (in dollars per share) \| $ / shares	$ 0.22
Granted (in shares)	11,625,000
SARs \| March 24, 2022
Number of SARs
Granted (in shares)	500,000
Weighted-Average Grant-Date Fair Value in U.S. Cents
Granted (in dollars per share) \| $ / shares	$ 0.22
Granted (in shares)	500,000