Equity Method Investments (Equity Method Investee, Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	$ 24,724	$ (3,075)	$ 8,412
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	32,308	16,317	24,407
TVGN [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	(2,610)	(16,529)	(8,533)
Defy Media Group [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	(5,380)	(3,847)	(5,816)
Roadside Attractions [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	529	521	612
FEARnet [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	(123)	463	71
Tiger Gate [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	$ 0	$ 0	$ (2,329)