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- Definition

Estimated Service Period Minimum

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No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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Amount, before accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Includes amount, before amortization expense and impairment loss, of goodwill for private company.

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- Definition

Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Useful life of property, plant, and equipment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	12 Months Ended
	Mar. 31, 2026 USD ($) unit	Mar. 31, 2025 USD ($) unit	Mar. 31, 2024 USD ($) unit
Goodwill [Line Items]
Number of reporting units \| unit	2
Goodwill impairment	$ 0.0	$ 3,545.2	$ 2,342.1
Goodwill gross	$ 6,949.2	6,944.6
Estimated service period minimum	5 years
Estimated service period maximum	15 months
Advertising expense	$ 1,287.1	$ 1,253.9	$ 1,132.4
Expected dividend yield	0.00%
One Reporting Unit
Goodwill [Line Items]
Number of reporting units \| unit		1	1
Goodwill gross	$ 570.0
Office equipment
Goodwill [Line Items]
Property, plant and equipment, useful life	5 years
Leasehold improvements
Goodwill [Line Items]
Property, plant and equipment, useful life	7 years
Buildings
Goodwill [Line Items]
Property, plant and equipment, useful life	30 years
Minimum \| Computer equipment
Goodwill [Line Items]
Property, plant and equipment, useful life	3 years
Minimum \| Software products
Goodwill [Line Items]
Finite-lived intangible asset, useful life	9 months
Maximum \| Computer equipment
Goodwill [Line Items]
Property, plant and equipment, useful life	5 years
Maximum \| Software products
Goodwill [Line Items]
Finite-lived intangible asset, useful life	36 months
Five largest customers \| Net revenue \| Customer concentration risk
Goodwill [Line Items]
Concentration risk rate	80.60%	81.00%	79.80%
Five largest customers \| Gross accounts receivable \| Credit concentration risk
Goodwill [Line Items]
Concentration risk rate	69.60%	72.10%
One Customer \| Net revenue \| Customer concentration risk
Goodwill [Line Items]
Concentration risk rate	22.50%	24.40%	21.10%
One Customer \| Gross accounts receivable \| Credit concentration risk
Goodwill [Line Items]
Concentration risk rate	22.70%	24.00%
Second Customer \| Net revenue \| Customer concentration risk
Goodwill [Line Items]
Concentration risk rate	24.90%	22.80%	23.20%
Second Customer \| Gross accounts receivable \| Credit concentration risk
Goodwill [Line Items]
Concentration risk rate	21.00%	21.30%
Customers individually accounting for more than 10% \| Gross accounts receivable \| Credit concentration risk
Goodwill [Line Items]
Concentration risk rate	57.70%	61.00%
Third Customer \| Net revenue \| Customer concentration risk
Goodwill [Line Items]
Concentration risk rate	15.00%	17.40%	18.60%
Third Customer \| Gross accounts receivable \| Credit concentration risk
Goodwill [Line Items]
Concentration risk rate	14.00%	15.70%
Fourth Customer \| Net revenue \| Customer concentration risk
Goodwill [Line Items]
Concentration risk rate	12.10%	10.10%	12.30%