Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Mar. 31, 2010
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 93,142		$ 95,654		$ 108,794
Charged to Costs and Expenses	155,416	[1]	202,164	[1]	180,277	[1]
Charged to Other Accounts	15,108		778		1,727
Deductions	(165,255)		(205,454)		(195,144)
Balance at End of Period	98,411		93,142		95,654
Video Returns and Allowances [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	90,715		87,978		98,947
Charged to Costs and Expenses	153,430	[1]	203,086	[1]	178,865	[1]
Charged to Other Accounts	14,940	[2]	478	[2]	1,103	[2]
Deductions	(165,225)	[3]	(200,827)	[3]	(190,937)	[3]
Balance at End of Period	93,860		90,715		87,978
Provision for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	2,427		7,676		9,847
Charged to Costs and Expenses	1,986	[1]	(922)	[1]	1,412	[1]
Charged to Other Accounts	168	[2]	300	[2]	624	[2]
Deductions	(30)	[4]	(4,627)	[4]	(4,207)	[4]
Balance at End of Period	$ 4,551		$ 2,427		$ 7,676

[1] Charges for video returns and allowances are charges against revenue.

[2] Opening balances due to acquisitions, including the acquisition of Summit Entertainment, LLC in the year ended March 31, 2012, and fluctuations in foreign currency exchange rates.

[3] Actual video returns and fluctuations in foreign currency exchange rates. The year ended March 31, 2011 includes a reclassification of video returns and allowances due to the sale of Maple Pictures.

[4] Uncollectible accounts written off and fluctuations in foreign currency exchange rates. The year ended March 31, 2011 includes a reclassification of the provision for doubtful accounts due to the sale of Maple Pictures. Additionally, the year ended March 31, 2010 includes a reclassification of the provision for doubtful accounts due to the deconsolidation of TV Guide Network.