Business Combinations (Details) - USD ($) $ in Thousands			12 Months Ended
	Apr. 29, 2021	Feb. 18, 2021	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Goodwill acquired			$ 984,000	$ 0
Payments to Acquire Businesses, Net of Cash Acquired			1,239,000	$ 0	$ 58,000
Codemasters Group Holdings plc [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Feb. 18, 2021
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Acquisition, Transaction Costs		$ 9,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		37,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		15,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		2,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		293,000
Goodwill acquired		984,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		(45,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities		(58,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities		(1,000)
Payments to Acquire Businesses, Net of Cash Acquired		$ 1,227,000	$ 1,200,000
Subsequent Event [Member] | Glu Mobile Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Apr. 29, 2021
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Payments to Acquire Businesses, Gross	$ 2,300,000