Investments (Cost Method Investments) (Details) - USD ($)	1 Months Ended		12 Months Ended
	Feb. 28, 2015	Jul. 31, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Schedule of Cost-method Investments [Line Items]
Value of shares issued to purchase cost method investment			$ 0	$ 12,000,000	$ 0
Telltale
Schedule of Cost-method Investments [Line Items]
Cost method investments, amount invested	$ 40,000,000
Payments to acquire cost method investments	$ 28,000,000
Cost method investments, ownership percentage	14.00%
Shares issued to purchase cost method investment (in shares)	361,229
Value of shares issued to purchase cost method investment	$ 12,000,000
Next Games
Schedule of Cost-method Investments [Line Items]
Payments to acquire cost method investments		$ 2,000,000	$ 200,000
Common Stock | Telltale
Schedule of Cost-method Investments [Line Items]
Shares received (in shares)	1,126,316
Convertible Preferred Stock | Series D Convertible Preferred Stock | Telltale
Schedule of Cost-method Investments [Line Items]
Shares received (in shares)	2,628,072