Consolidating Financial Information - Convertible Senior Subordinated Notes (Statement of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Convertible Senior Subordinated Notes [Member]	Dec. 31, 2011 Convertible Senior Subordinated Notes [Member]	Dec. 31, 2012 Convertible Senior Subordinated Notes [Member] Lions Gate Entertainment Corp. [Member]	Dec. 31, 2011 Convertible Senior Subordinated Notes [Member] Lions Gate Entertainment Corp. [Member]	Dec. 31, 2012 Convertible Senior Subordinated Notes [Member] Lions Gate Entertainment Inc. [Member]	Dec. 31, 2011 Convertible Senior Subordinated Notes [Member] Lions Gate Entertainment Inc. [Member]	Dec. 31, 2012 Convertible Senior Subordinated Notes [Member] Non-guarantor Subsidiaries [Member]	Dec. 31, 2011 Convertible Senior Subordinated Notes [Member] Non-guarantor Subsidiaries [Member]	Dec. 31, 2012 Convertible Senior Subordinated Notes [Member] Consolidating Adjustments [Member]	Dec. 31, 2011 Convertible Senior Subordinated Notes [Member] Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	$ 218,259	$ (211,852)	$ 218,259	$ (211,852)	$ 1,678	$ 71,098	$ (304,987)	$ (134,559)	$ 521,568	$ (148,391)	$ 0	$ 0
Investing Activities:
Purchases of investments	(2,022)	0	(2,022)		0		0		(2,022)		0
Proceeds from the sale of investments	6,354	0	6,354		0		0		6,354		0
Proceeds from the sale of asset disposal group, net of transaction costs and cash disposed of $3,943	0	(9,119)		9,119		9,119		0		0		0
Investment in equity method investees	0	(1,030)		(1,030)		(1,030)		0		0		0
Increase in loans receivable	0	(1,500)		(1,500)		0		(1,500)		0		0
Repayment of loans receivable	4,274	0	4,274		0		0		4,274		0
Purchases of property and equipment	(2,086)	(1,549)	(2,086)	(1,549)	0	0	(1,863)	(1,520)	(223)	(29)	0	0
Net Cash Flows Provided By (Used In) Investing Activities	6,520	5,040	6,520	5,040	0	8,089	(1,863)	(3,020)	8,383	(29)	0	0
Financing Activities:
Exercise of stock options	2,897	151	2,897	151	2,897	151	0	0	0	0	0	0
Tax withholding requirements on equity awards	(4,939)	(2,630)	(4,939)	(2,630)	(4,939)	(2,630)	0	0	0	0	0	0
Repurchase of common shares	0	(77,088)		(77,088)		(77,088)		0		0		0
Senior revolving credit facility - borrowings	1,104,924	263,650	1,104,924	263,650	0	0	1,104,924	263,650	0	0	0	0
Senior revolving credit facility - repayments	(758,200)	(238,900)	(758,200)	(238,900)	0	0	(758,200)	(238,900)	0	0	0	0
Senior revolving credit facility - deferred financing costs	(15,804)	0	(15,804)		0		(15,804)		0		0
Individual production loans - borrowings	259,130	198,148	259,130	198,148	0	0	0	0	259,130	198,148	0	0
Individual production loans - repayments	(282,548)	(133,998)	(282,548)	(133,998)	0	0	0	0	(282,548)	(133,998)	0	0
Film credit facility - borrowings	3,994	43,714	3,994	43,714	0	0	0	0	3,994	43,714	0	0
Film credit facility - repayments	(39,055)	(23,518)	(39,055)	(23,518)	0	0	0	0	(39,055)	(23,518)	0	0
Pennsylvania Regional Center credit facility - repayments	(500)	0	(500)		0		0		(500)		0
Change in restricted cash collateral associated with financing activities	(12,769)	0	(12,769)	0	0	0	0	0	(12,769)	0	0	0
Term Loan - repayments	(484,664)	0	(484,664)		0		0		(484,664)		0
Senior secured second-priority notes - consent fee	(3,270)	0	(3,270)		0		(3,270)		0		0
Senior secured second-priority notes - borrowings, net of deferred financing costs	0	201,955		201,955		0		201,955		0		0
Senior secured second-priority notes - repurchases	0	(9,852)		(9,852)		0		(9,852)
Convertible senior subordinated notes - repurchases	(7,639)	(46,059)	(7,639)	(46,059)	0	0	(7,639)	(46,059)	0	0	0	0
Other financing obligations - repayments	(3,710)	0	(3,710)		0		0		(3,710)		0
Net Cash Flows Provided By (Used In) Financing Activities	(242,153)	175,573	(242,153)	175,573	(2,042)	(79,567)	320,011	170,794	(560,122)	84,346	0	0
Net Change In Cash And Cash Equivalents	(17,374)	(31,239)	(17,374)	(31,239)	(364)	(380)	13,161	33,215	(30,171)	(64,074)	0	0
Foreign Exchange Effects on Cash	1,264	(2,329)	1,264	(2,329)	(7)	(27)	0	0	1,271	(2,302)	0	0
Cash and Cash Equivalents - Beginning Of Period	64,298	86,419	64,298	86,419	561	795	477	6,451	63,260	79,173	0	0
Cash and Cash Equivalents - End Of Period	$ 48,188	$ 52,851	$ 48,188		$ 190		$ 13,638		$ 34,360		$ 0