INCOME TAXES - Uncertain Tax Positions (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Income Tax Contingency [Line Items]
Increase in interest and penalties	$ 14.8	$ 13.5	$ 8.9
Gross amount of interest and penalties accrued	48.4	33.6
Gross unrecognized tax benefits including interest and penalties	267.1
Gross unrealized tax benefits, which would affect effective tax rate, if realized	109.5
Increase (decrease) in unrecognized tax benefits	9.3
Possible reduction of unrecognized tax benefits within the next 12 months	7.4
Aggregate changes to the liability for gross uncertain tax position, excluding interest and penalties
Balance, beginning of period	242.8	274.7	164.8
Additions:
Current year tax positions	63.6	41.4	26.5
Prior year tax positions	0.0	2.3	109.7
Reduction of prior year tax positions	(60.3)	0.0	(26.3)
Lapse of statute of limitations	(28.1)	(76.2)	0.0
Other	0.6	0.6	0.0
Balance, end of period	$ 218.6	$ 242.8	274.7
Zynga Inc
Additions:
Prior year tax positions			$ 109.7

Unrecognized Tax Benefits, Additions [Abstract]

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date, excluding interest and penalties.

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Unrecognized Tax Benefits, Other Period Increase (Decrease)

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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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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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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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