DEBT - Convertible Notes (Details) $ / shares in Units, $ in Millions			3 Months Ended		9 Months Ended
	Jun. 22, 2022 USD ($) day shares	May 23, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)
Debt Instrument [Line Items]
Short-term debt, net			$ 373.2		$ 373.2		$ 1,346.8
Total			2,724.1		2,724.1		$ 1,744.1
(Gain) loss on fair value adjustments, net					1.7	$ 37.1
Convertible Debt
Debt Instrument [Line Items]
(Gain) loss on fair value adjustments, net			$ (0.0)	$ (1.5)	$ 3.2	$ 44.8
Convertible Debt | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Number of trading days | day	20
Number of consecutive trading days | day	30
Redemption price, percentage	130.00%
Convertible Debt | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Number of trading days | day	5
Number of consecutive trading days | day	5
Redemption price, percentage	98.00%
Zynga Inc
Debt Instrument [Line Items]
Exchange ratio (in shares) | shares		0.0406
Cash consideration, per share (in dollars per share) | $ / shares		$ 3.50
Zynga Inc | Convertible Debt
Debt Instrument [Line Items]
Exchange ratio (in shares) | shares		0.0406
Cash consideration, per share (in dollars per share) | $ / shares		$ 3.50
0.25% Convertible Senior Notes due 2024 | Convertible Debt
Debt Instrument [Line Items]
Principal tendered for cash	$ 0.3
Principal surrendered for conversion	668.3
Amount paid for tendered or conversion of notes	$ 321.6
Shares issued (in shares) | shares	3,700,000
Long-term debt, net	$ 21.4	$ 778.6
0.25% Convertible Senior Notes due 2024 | Zynga Inc | Convertible Debt
Debt Instrument [Line Items]
Interest rate		0.25%
Principal amount at issuance		$ 690.0
0% Convertible Senior Notes due 2026 | Convertible Debt
Debt Instrument [Line Items]
Principal tendered for cash	845.1
Principal surrendered for conversion	0.0
Amount paid for tendered or conversion of notes	845.1
Long-term debt, net	$ 29.4	$ 874.5
0% Convertible Senior Notes due 2026 | Zynga Inc | Convertible Debt
Debt Instrument [Line Items]
Interest rate		0.00%
Principal amount at issuance		$ 874.5
2024 Convertible Notes
Debt Instrument [Line Items]
Interest rate			0.25%		0.25%		0.25%
Short-term debt, net			$ 23.2		$ 23.2
Total							$ 20.8
2026 Convertible Notes
Debt Instrument [Line Items]
Interest rate			0.00%		0.00%		0.00%
Total			$ 24.1		$ 24.1		$ 23.3