Lions Gate Entertainment (LGF-A) 10-Q 5 Feb 15 2015 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Dec. 31, 2014	Feb. 02, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	LIONS GATE ENTERTAINMENT CORP /CN/
Entity Central Index Key	929351
Document Type	10-Q
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	-28
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		139,853,866

Unaudited_Condensed_Consolidat

Unaudited Condensed Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
ASSETS
Cash and cash equivalents	$28,886	$25,692
Restricted cash	7,508	8,925
Accounts receivable, net of reserves for returns and allowances of $64,815 (March 31, 2014 - $106,680) and provision for doubtful accounts of $4,074 (March 31, 2014 - $4,876)	974,579	885,571
Investment in films and television programs, net	1,447,393	1,274,573
Property and equipment, net	22,430	14,552
Equity method investments	211,680	181,941
Goodwill	323,328	323,328
Other assets	71,372	71,067
Deferred tax assets	54,329	65,983
Total assets	3,141,505	2,851,632
LIABILITIES
Senior revolving credit facility	160,500	97,619
5.25% Senior Notes	225,000	225,000
Term Loan	223,021	222,753
Accounts payable and accrued liabilities	271,101	332,457
Participations and residuals	463,093	469,390
Film obligations and production loans	737,565	499,787
Convertible senior subordinated notes	113,271	131,788
Deferred revenue	279,958	288,300
Total liabilities	2,473,509	2,267,094
Commitments and contingencies
SHAREHOLDERS’ EQUITY
Common shares, no par value, 500,000,000 shares authorized, 140,259,641 shares issued (March 31, 2014 - 141,007,461 shares)	668,492	743,788
Retained earnings (accumulated deficit)	4,352	-157,875
Accumulated other comprehensive loss	-4,848	-1,375
Total shareholders’ equity	667,996	584,538
Total liabilities and shareholders’ equity	$3,141,505	$2,851,632

Unaudited_Condensed_Consolidat1

Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, except Share data, unless otherwise specified
Reserve for returns and allowances on accounts receivable	$64,815	$106,680
Provision for doubtful accounts on accounts receivable	$4,074	$4,876
Common stock, no par value
Authorized common shares	500,000,000	500,000,000
Common stock, shares issued	140,259,641	141,007,461
5.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Coupon rate	5.25%

Unaudited_Condensed_Consolidat2

Unaudited Condensed Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Revenues	$751,299	$839,939	$1,753,558	$1,908,396
Expenses:
Direct operating	400,576	397,513	945,840	965,756
Distribution and marketing	171,439	233,535	421,637	550,497
General and administration	61,407	65,577	186,975	186,120
Depreciation and amortization	1,708	1,530	4,685	4,766
Total expenses	635,130	698,155	1,559,137	1,707,139
Operating income	116,169	141,784	194,421	201,257
Interest expense
Cash interest	10,567	11,484	29,546	39,682
Amortization of debt discount and deferred financing costs	2,984	4,090	10,048	12,878
Total interest expense	13,551	15,574	39,594	52,560
Interest and other income	-623	-1,771	-2,188	-4,750
Loss on extinguishment of debt	690	0	1,276	36,653
Total other expenses, net	13,618	13,803	38,682	84,463
Income before equity interests and income taxes	102,551	127,981	155,739	116,794
Equity interests income (loss)	10,898	-1,321	37,353	13,158
Income before income taxes	113,449	126,660	193,092	129,952
Income tax provision	15,264	37,897	30,865	27,067
Net income	$98,185	$88,763	$162,227	$102,885
Basic net income per common share	$0.70	$0.64	$1.17	$0.75
Diluted net income per common share	$0.65	$0.59	$1.10	$0.71
Weighted average number of common shares outstanding:
Basic	139,963	137,946	138,618	137,097
Diluted	151,713	155,137	151,716	154,197
Dividends declared per common share	$0.07	$0.05	$0.19	$0.05

Unaudited_Condensed_Consolidat3

Unaudited Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Net income	$98,185	$88,763	$162,227	$102,885
Foreign currency translation adjustments	-2,373	517	-4,166	4,104
Net unrealized gain (loss) on foreign exchange contracts, net of tax	277	-114	693	-770
Comprehensive income	$96,089	$89,166	$158,754	$106,219

Unaudited_Condensed_Consolidat4

Unaudited Condensed Consolidated Statement of Shareholders' Equity (USD $)	Total	Common Shares [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Thousands, except Share data
Beginning balance at Mar. 31, 2014	$584,538	$743,788	($157,875)	($1,375)
Beginning balance, shares at Mar. 31, 2014		141,007,461
Exercise of stock options	4,404	4,404
Exercise of stock options, shares		268,247
Share-based compensation, net of withholding tax obligations of $14,939	38,901	38,901
Share-based compensation, net of withholding tax obligations of $14,939, shares		621,604
Conversion of October 2004 2.9375% Notes and April 2009 3.625% Notes	24,024	24,024
Conversion of October 2004 2.9375% Notes and April 2009 3.625% Notes, shares		2,938,533
Issuance of common shares to directors for services	521	521
Issuance of common shares to directors for services, shares		18,390
Repurchase of common shares, no par value	-123,626	-123,626
Repurchase of common shares, no par value, shares		-4,594,594
Dividends declared	-26,287	-26,287
Excess tax benefits on equity-based compensation awards	6,767	6,767
Net income	162,227		162,227
Foreign currency translation adjustments	-4,166			-4,166
Net unrealized gain on foreign exchange contracts, net of tax	693			693
Ending balance at Dec. 31, 2014	$667,996	$668,492	$4,352	($4,848)
Ending balance, shares at Dec. 31, 2014		140,259,641

Unaudited_Condensed_Consolidat5

Unaudited Condensed Consolidated Statement of Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
Withholding tax obligations for share-based compensation	$14,939
Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Coupon rate	2.94%
Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Coupon rate	3.63%

Unaudited_Condensed_Consolidat6

Unaudited Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Operating Activities:
Net income	$162,227	$102,885
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	4,685	4,766
Amortization of films and television programs	639,472	636,818
Amortization of debt discount and deferred financing costs	10,048	12,878
Non-cash share-based compensation	48,691	41,044
Distribution from equity method investee	7,788	9,849
Loss on extinguishment of debt	1,276	36,653
Equity interests income	-37,353	-13,158
Deferred income taxes	11,243	13,272
Changes in operating assets and liabilities:
Restricted cash	1,417	-29,754
Accounts receivable, net	-94,803	-46,376
Investment in films and television programs	-815,469	-692,943
Other assets	-1,416	-1,696
Accounts payable and accrued liabilities	-52,700	4,205
Participations and residuals	-6,070	38,236
Film obligations	-33,953	11,208
Deferred revenue	-8,124	17,947
Net Cash Flows Provided By (Used In) Operating Activities	-163,041	145,834
Investing Activities:
Proceeds from the sale of equity method investees	14,575	9,000
Investment in equity method investees	-14,750	-17,250
Distributions from equity method investee in excess of earnings	0	4,169
Other investments	-2,000	0
Repayment of loans receivable	0	4,275
Purchases of property and equipment	-11,293	-6,116
Net Cash Flows Used In Investing Activities	-13,468	-5,922
Financing Activities:
Senior revolving credit facility - borrowings	681,500	782,219
Senior revolving credit facility - repayments	-618,619	-926,574
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013	0	440,640
10.25% Senior Notes - repurchases and redemptions	0	-470,584
Convertible senior subordinated notes - borrowings	0	60,000
Convertible senior subordinated notes - repurchases	-16	0
Production loans - borrowings	533,781	359,582
Production loans - repayments	-261,868	-301,385
Pennsylvania Regional Center credit facility - repayments	0	-65,000
Repurchase of common shares	-129,859	0
Dividends paid	-23,536	0
Excess tax benefits on equity-based compensation awards	6,767	0
Exercise of stock options	4,404	10,869
Tax withholding required on equity awards	-14,939	-14,376
Net Cash Flows Provided By (Used In) Financing Activities	177,615	-124,609
Net Change In Cash And Cash Equivalents	1,106	15,303
Foreign Exchange Effects on Cash	2,088	-2,264
Cash and Cash Equivalents - Beginning Of Period	25,692	62,363
Cash and Cash Equivalents - End Of Period	$28,886	$75,402

Unaudited_Condensed_Consolidat7

Unaudited Condensed Consolidated Statements of Cash Flows (Parenthetical) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
5.25% Senior Notes and Term Loan [Member]
Deferred financing costs	$0	$6,860
Senior Secured Second-Priority Notes [Member] | 5.25% Senior Notes [Member]
Coupon rate	5.25%	5.25%
Senior Secured Second-Priority Notes [Member] | 10.25% Senior Notes [Member]
Coupon rate	10.25%	10.25%

General

General	9 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General
	Nature of Operations
	Lions Gate Entertainment Corp. (the “Company,” “Lionsgate,” "Lions Gate," “we,” “us” or “our”) is a leading global entertainment company with a strong and diversified presence in motion picture production and distribution, television programming and syndication, home entertainment, family entertainment, digital distribution, new channel platforms and international distribution and sales.
	Basis of Presentation
	The accompanying unaudited condensed consolidated financial statements include the accounts of Lionsgate and all of its majority-owned and controlled subsidiaries.
	The unaudited condensed consolidated financial statements have been prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to quarterly report on Form 10-Q under the Securities Exchange Act of 1934, as amended, and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of the Company’s management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been reflected in these unaudited condensed consolidated financial statements. Operating results for the three and nine months ended December 31, 2014 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2015. The balance sheet at March 31, 2014 has been derived from the audited financial statements at that date, but does not include all the information and footnotes required by U.S. GAAP for complete financial statements. The accompanying unaudited condensed consolidated financial statements should be read together with the consolidated financial statements and related notes included in the Company's Annual Report on Form 10-K for the fiscal year ended March 31, 2014.
	Certain amounts presented in prior years have been reclassified to conform to the current year’s presentation.
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. The most significant estimates made by management in the preparation of the financial statements relate to ultimate revenue and costs for investment in films and television programs; estimates of sales returns and other allowances and provisions for doubtful accounts; fair value of equity-based compensation; fair value of assets and liabilities for allocation of the purchase price of companies acquired; income taxes and accruals for contingent liabilities; and impairment assessments for investment in films and television programs, property and equipment, equity investments, goodwill and intangible assets. Actual results could differ from such estimates.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board ("FASB") issued an accounting standard update relating to the recognition of revenue from contracts with customers, which will supersede most current U.S. GAAP revenue recognition guidance, including industry-specific guidance. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The guidance will be effective for the Company's fiscal year beginning April 1, 2017, and can be applied either retrospectively or under a cumulative-effect transition method. The Company is currently evaluating the impact that the adoption of this new guidance will have on its consolidated financial statements.

Investment_In_Films_And_Televi

Investment In Films And Television Programs	9 Months Ended
	Dec. 31, 2014
Investment In Films And Television Programs [Abstract]
Investment In Films And Television Programs	Investment in Films and Television Programs
		December 31,			March 31,
		2014			2014
		(Amounts in thousands)
	Motion Pictures Segment - Theatrical and Non-Theatrical Films
	Released, net of accumulated amortization	$	454,576		$	509,831
	Acquired libraries, net of accumulated amortization	11,153			14,329
	Completed and not released	124,674			50,785
	In progress	473,052			351,047
	In development	30,765			22,336
	Product inventory	22,342			31,248
		1,116,562			979,576
	Television Production Segment - Direct-to-Television Programs
	Released, net of accumulated amortization	227,513			212,929
	In progress	96,441			76,459
	In development	6,877			5,609
		330,831			294,997
		$	1,447,393		$	1,274,573
	The following table sets forth acquired libraries that represent titles released three years prior to the date of acquisition. These libraries are being amortized over their expected revenue stream from the acquisition date over a period up to 20 years:
				Total		Remaining	Unamortized Costs
				Amortization		Amortization
	Acquired Library		Acquisition Date	Period		Period	December 31,		March 31,
							2014		2014
				(In years)			(Amounts in thousands)
	Artisan Entertainment		December 2003	20		9	$	6,702	$	10,236
	Summit Entertainment		Jan-12	20		17	4,451		4,093
	Total acquired libraries						$	11,153	$	14,329
	The Company expects approximately 47% of completed films and television programs, net of accumulated amortization, will be amortized during the one-year period ending December 31, 2015. Additionally, the Company expects approximately 81% of completed and released films and television programs, net of accumulated amortization and excluding acquired libraries, will be amortized during the three-year period ending December 31, 2017.

Equity_Method_Investments

Equity Method Investments	9 Months Ended
	Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments
	The carrying amounts of equity method investments at December 31, 2014 and March 31, 2014 were as follows:
		December 31,
		2014
	Equity Method Investee	Ownership		December 31,				March 31,
		Percentage		2014				2014
				(Amounts in thousands)
	EPIX	31.20%		$	98,416			$	78,758
	POP (formerly TVGN)	50.00%		92,134				86,298
	Other Equity Method Investments(1)	Various		21,130				16,885
				$	211,680			$	181,941
	Equity interests in equity method investments for the three and nine months ended December 31, 2014 and 2013 were as follows (income (loss)):
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
	Equity Method Investee	2014				2013				2014			2013
		(Amounts in thousands)
	EPIX	$	11,214			$	5,614			$	27,446		$	21,236
	POP (formerly TVGN)	(1,115		)		(5,223		)		(4,663		)	(3,166		)
	Other Equity Method Investments(1)	799				(1,712		)		14,570			(4,912		)
		$	10,898			$	(1,321	)		$	37,353		$	13,158
	_________________________
	(1)The Company records its share of the net income or loss of Other Equity Method Investments on a one quarter lag and, accordingly, during the three and nine months ended December 31, 2014 and 2013, the Company recorded its share of the income or loss generated by these entities for the three and nine months ended September 30, 2014 and 2013, respectively. Equity interest income from Other Equity Method Investments of $14.6 million for the nine months ended December 31, 2014 includes a gain on the sale of the Company's investment in FEARnet of $11.4 million. The Company sold all of its 34.5% interest in FEARnet on April 14, 2014, for a sales price of approximately $14.6 million. As a result of this transaction, the Company's equity interest in FEARnet was reduced to zero as of June 30, 2014.
	The Company licenses certain of its theatrical releases and other films and television programs to EPIX and POP (formerly TVGN). A portion of the profits of these licenses reflecting the Company's ownership share in the venture are eliminated through an adjustment to the equity interest income (loss) of the venture. These profits are recognized as they are realized by the equity method investee through the amortization of the related asset, recorded on the equity method investee's balance sheet, over the license period.
	Distributions from equity method investees are recorded as a reduction of the Company's investment. Distributions received up to the Company's interest in the investee's retained earnings are considered returns on investments and are classified within cash flows from operating activities in the statement of cash flows. Distributions from equity method investments in excess of the Company's interest in the investee's retained earnings are considered returns of investments and are classified within cash flows provided by investing activities in the statement of cash flows.
	EPIX. In April 2008, the Company formed a joint venture with Viacom, its Paramount Pictures unit and Metro-Goldwyn-Mayer Studios to create a premium television channel and subscription video-on-demand service named “EPIX”. The Company invested $80.4 million through September 30, 2010, and no additional amounts have been funded since. During the three and nine months ended December 31, 2014, the Company received distributions from EPIX of nil and $7.8 million, respectively. During the three and nine months ended December 31, 2013, the Company received distributions from EPIX of nil and $14.0 million, respectively. Since the Company's original investment in April 2008, the Company has received distributions from EPIX of $28.0 million through December 31, 2014.
	EPIX Financial Information:
	The following table presents summarized balance sheet data as of December 31, 2014 and March 31, 2014 for EPIX:
		December 31,				March 31,
		2014				2014
		(Amounts in thousands)
	Current assets	$	221,417			$	184,471
	Non-current assets	$	267,544			$	247,231
	Current liabilities	$	117,394			$	126,217
	Non-current liabilities	$	9,515			$	9,459
	The following table presents the summarized statement of operations for the three and nine months ended December 31, 2014 and 2013 for EPIX and a reconciliation of the net income reported by EPIX to equity interest income recorded by the Company:
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
		2014				2013				2014			2013
		(Amounts in thousands)
	Revenues	$	101,124			$	89,768			$	288,424		$	261,998
	Expenses:
	Operating expenses	59,224				60,973				178,690			182,259
	Selling, general and administrative expenses	5,863				5,791				17,503			17,054
	Operating income	36,037				23,004				92,231			62,685
	Interest and other expense	(399		)		(163		)		(1,130		)	(1		)
	Net income	$	35,638			$	22,841			$	91,101		$	62,684
	Reconciliation of net income reported by EPIX to equity interest income:
	Net income reported by EPIX	$	35,638			$	22,841			$	91,101		$	62,684
	Ownership interest in EPIX	31.15		%		31.15		%		31.15		%	31.15		%
	The Company's share of net income	11,101				7,115				28,378			19,526
	Eliminations of the Company’s share of profits on licensing sales to EPIX(1)	(1,935		)		(3,606		)		(7,007		)	(9,226		)
	Realization of the Company’s share of profits on licensing sales to EPIX(2)	2,048				2,105				6,075			10,936
	Total equity interest income recorded	$	11,214			$	5,614			$	27,446		$	21,236
	__________________
	-1	Represents the elimination of the gross profit recognized by the Company on licensing sales to EPIX in proportion to the Company's ownership interest in EPIX. The table below sets forth the revenues and gross profits recognized by the Company and the calculation of the profit eliminated for the three and nine months ended December 31, 2014 and 2013:
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
		2014				2013				2014			2013
		(Amounts in thousands)
	Revenue recognized on licensing sales to EPIX	$	15,349			$	24,740			$	41,281		$	47,871
	Gross profit on licensing sales to EPIX	$	6,213			$	11,576			$	22,493		$	29,619
	Ownership interest in EPIX	31.15		%		31.15		%		31.15		%	31.15		%
	Elimination of the Company's share of profits on licensing sales to EPIX	$	1,935			$	3,606			$	7,007		$	9,226
	-2	Represents the realization of a portion of the profits previously eliminated. This profit remains eliminated until realized by EPIX. EPIX initially records the license fee for the title as inventory on its balance sheet and amortizes the inventory over the license period. Accordingly, the profit is realized as the inventory on EPIX's books is amortized.
POP (formerly TVGN). In January 2015, TVGN was rebranded as POP, a multi-platform destination dedicated to celebrating the fun of being a fan. The Company’s investment interest in POP consists of an equity investment in its common stock units and mandatorily redeemable preferred stock units. The Company has determined that it is not the primary beneficiary of POP because the power to direct the activities that most significantly impact the economic performance of POP is shared with CBS Corporation ("CBS"). Accordingly, the Company's interest in POP is being accounted for under the equity method of accounting. During the three and nine months ended December 31, 2014, the Company made contributions to POP of nil and $10.5 million, respectively.
The mandatorily redeemable preferred stock units carry a dividend rate of 10% compounded annually and are mandatorily redeemable in May 2019 at the stated value plus the dividend return and any additional capital contributions less previous distributions. The mandatorily redeemable preferred stock units were initially recorded based on their estimated fair value, as determined using an option pricing model. The mandatorily redeemable preferred stock units and the 10% dividend are being accreted up to their redemption amount over the ten-year period to the redemption date, which is recorded as income within equity interest.
POP Financial Information:
The following table presents summarized balance sheet data as of December 31, 2014 and March 31, 2014 for POP:
	December 31,				March 31,
	2014				2014
	(Amounts in thousands)
Current assets	$	31,594			$	27,150
Non-current assets	$	192,430			$	196,011
Current liabilities	$	29,583			$	30,653
Non-current liabilities	$	6,970			$	12,334
Redeemable preferred stock	$	377,062			$	325,204
The following table presents the summarized statement of operations for the three and nine months ended December 31, 2014 and 2013 for POP and a reconciliation of the net loss reported by POP to equity interest loss recorded by the Company:
	Three Months Ended								Nine Months Ended
	December 31,								December 31,
	2014				2013				2014			2013
	(Amounts in thousands)
Revenues	$	20,507			$	20,058			$	59,073		$	55,023
Expenses:
Cost of services	8,645				13,874				26,938			27,877
Selling, marketing, and general and administration	11,934				12,446				34,527			32,923
Depreciation and amortization	1,928				2,040				5,866			6,034
Operating loss	(2,000		)		(8,302		)		(8,258		)	(11,811		)
Other expense (income)	6				160				391			(1,230		)
Interest expense, net	160				297				551			979
Accretion of redeemable preferred stock units(1)	12,461				10,347				35,361			29,498
Total interest expense, net	12,627				10,804				36,303			29,247
Loss from continuing operations	(14,627		)		(19,106		)		(44,561		)	(41,058		)
Loss from discontinued operations	—				(1,685		)		—			(2,799		)
Net loss	$	(14,627	)		$	(20,791	)		$	(44,561	)	$	(43,857	)
Reconciliation of net loss reported by POP to equity interest loss:
Net loss reported by POP	$	(14,627	)		$	(20,791	)		$	(44,561	)	$	(43,857	)
Ownership interest in POP	50		%		50		%		50		%	50		%
The Company's share of net loss	(7,314		)		(10,396		)		(22,281		)	(21,929		)
Gain on sale of the Company's 50% share of TVGuide.com(2)	—				—				—			3,960
Accretion of dividend and interest income on redeemable preferred stock units(1)	6,231				5,173				17,681			14,749
Elimination of the Company's share of profits on licensing sales to POP	—				—				(367		)	—
Realization of the Company’s share of profits on licensing sales to POP	(32		)		—				304			54
Total equity interest loss recorded	$	(1,115	)		$	(5,223	)		$	(4,663	)	$	(3,166	)
___________________
-1	Accretion of mandatorily redeemable preferred stock units represents POP's 10% dividend and the amortization of discount on its mandatorily redeemable preferred stock units held by the Company and the other interest holder. The Company recorded its share of this expense as income from the accretion of dividend and discount on mandatorily redeemable preferred stock units within equity interest income (loss).
-2	Represents the gain on the May 31, 2013 sale of the Company's 50% interest in TVGuide.com. As a result of the sale, TVGuide.com is considered a discontinued operation by POP, and accordingly, the revenues and expenses of TVGuide.com prior to the transaction for all periods presented, are reflected net within the discontinued operations section of the summarized statement of operations for POP.
Other Equity Method Investments
Defy Media. In June 2007, the Company acquired an interest in Break Media, a multi-platform digital media company and a leader in male-targeted content creation and distribution. In October 2013, Break Media merged with Alloy Digital, a multi-platform digital media company with a strong presence in the youth market, to create Defy Media. The Company's effective economic interest in Defy Media through its investment in Break Media and its direct investment in Defy Media is approximately 16.0%. The Company is accounting for its investment in Defy Media, a limited liability company, under the equity method of accounting due to the Company's board representation that provides significant influence over the investee.
Roadside Attractions. Roadside Attractions is an independent theatrical distribution company. The Company owns a 43.0% interest in Roadside Attractions.
Pantelion Films. Pantelion Films is a joint venture with Videocine, an affiliate of Televisa, which produces, acquires and distributes a slate of English and Spanish language feature films that target Hispanic moviegoers in the U.S. The Company owns a 49.0% interest in Pantelion Films.
MovieFriends. MovieFriends is a theatrical movie discovery service. The Company made an initial investment of $2.2 million in MovieFriends during the three months ended June 30, 2014. The Company owns a 12.3% interest in MovieFriends. The Company is accounting for its investment in MovieFriends, a limited liability company, under the equity method of accounting due to the Company's board representation that provides significant influence over the investee.
Tribeca Short List. Tribeca Short List is a subscription video-on-demand (SVOD) service. The Company made an initial investment of $2.1 million during the three months ended December 31, 2014. The Company holds a 75.0% economic interest, however, the power to direct the activities that most significantly impact the economic performance of Tribeca Short List is shared equally with Tribeca Enterprises. Accordingly, the Company's interest in Tribeca Short List is being accounted for under the equity method of accounting.

Other_Assets

Other Assets	9 Months Ended
	Dec. 31, 2014
Other Assets, Unclassified [Abstract]
Other Assets	Other Assets
	The composition of the Company’s other assets is as follows as of December 31, 2014 and March 31, 2014:
		December 31,		March 31,
		2014		2014
		(Amounts in thousands)
	Deferred financing costs, net of accumulated amortization	$	29,084	$	34,722
	Prepaid expenses and other	40,648		33,347
	Finite-lived intangible assets	1,640		2,998
		$	71,372	$	71,067
	Deferred Financing Costs. Deferred financing costs primarily include costs incurred in connection with the Company's various debt issuances (see Note 5).
	Prepaid Expenses and Other. Prepaid expenses and other primarily include prepaid expenses, security deposits, and other investments.
	Finite-lived Intangible Assets. Finite-lived intangibles consist primarily of sales agency relationships and trademarks.

Corporate_Debt

Corporate Debt	9 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Corporate Debt	Corporate Debt
	The total carrying values of corporate debt of the Company, excluding film obligations and production loans, were as follows as of December 31, 2014 and March 31, 2014:
		December 31, 2014			March 31, 2014
		(Amounts in thousands)
	Senior revolving credit facility	$	160,500		$	97,619
	5.25% Senior Notes	225,000			225,000
	Term Loan, net of unamortized discount of $1,979 (March 31, 2014 - $2,247)	223,021			222,753
	Convertible senior subordinated notes, net of unamortized discount of $4,753 (March 31, 2014 - $10,397)	113,271			131,788
		$	721,792		$	677,160
	The following table sets forth future annual contractual principal payment commitments of corporate debt as of December 31, 2014:
			Conversion Price Per Share at December 31, 2014	Maturity Date or Next Holder Redemption Date(1)		Year Ended March 31,
	Debt Type					2015			2016				2017		2018		2019			Thereafter		Total
						(Amounts in thousands)
	Senior revolving credit facility		N/A	Sep-17		$	—		$	—			$	—	$	160,500	$	—		$	—	$	160,500
	5.25% Senior Notes		N/A	Aug-18		—			—				—		—		225,000			—		225,000
	Term Loan		N/A	Jul-20		—			—				—		—		—			225,000		225,000
	Principal amounts of convertible senior subordinated notes:
	April 2009 3.625% Notes		$8.17	Mar-15		16,174			—				—		—		—			—		16,174
	January 2012 4.00% Notes		$10.40	Jan-17		—			—				41,850		—		—			—		41,850
	April 2013 1.25% Notes		$29.71	Apr-18		—			—				—		—		60,000			—		60,000
						$	16,174		$	—			$	41,850	$	160,500	$	285,000		$	225,000	728,524
	Less aggregate unamortized discount																					(6,732		)
																						$	721,792
	____________________
	-1	The future repayment dates of the convertible senior subordinated notes represent the next redemption date by holders for each series of notes respectively, as described below.
	Senior Revolving Credit Facility
	Availability of Funds. The senior revolving credit facility provides for borrowings and letters of credit up to an aggregate of $800 million, and at December 31, 2014 there was $639.5 million available (March 31, 2014 — $702.3 million). The availability of funds is limited by a borrowing base and also reduced by outstanding letters of credit which amounted to nil at December 31, 2014 (March 31, 2014 — $0.1 million).
	Maturity Date. September 27, 2017.
	Interest. Interest is payable at an alternative base rate, as defined, plus 1.5%, or LIBOR plus 2.5% as designated by the Company. As of December 31, 2014, the senior revolving credit facility bore interest of 2.5% over the LIBOR rate (effective interest rate of 2.67% and 2.65% on borrowings outstanding as of December 31, 2014 and March 31, 2014, respectively).
	Commitment Fee. The Company is required to pay a quarterly commitment fee of 0.375% to 0.5% per annum, depending on the average balance of borrowings outstanding during the period, on the total senior revolving credit facility of $800 million less the amount drawn.
	Security. Obligations are secured by collateral (as defined in the credit agreement) granted by the Company and certain subsidiaries of the Company, as well as a pledge of equity interests in certain of the Company’s subsidiaries.
	Covenants. The senior revolving credit facility contains a number of covenants that, among other things, require the Company to satisfy certain financial covenants and restrict the ability of the Company to incur additional debt, pay dividends, make certain investments and acquisitions, repurchase its stock, prepay certain indebtedness, create liens, enter into agreements with affiliates, modify the nature of its business, enter into sale-leaseback transactions, transfer and sell material assets and merge or consolidate. As of December 31, 2014, the Company was in compliance with all applicable covenants.
	Change in Control. The Company may also be subject to an event of default upon a change in control (as defined in the credit agreement) which, among other things, includes a person or group acquiring ownership or control in excess of 50% of the Company’s common shares.
	5.25% Senior Notes and Term Loan
	Issuance. In July 2013, contemporaneous with the redemption of the 10.25% Senior Secured Second-Priority Notes (the "10.25% Senior Notes") discussed below, Lions Gate Entertainment Corp. issued $225.0 million aggregate principal amount of 5.25% Senior Secured Second-Priority Notes (the "5.25% Senior Notes"), and entered into a seven-year term loan (the "Term Loan"), for an aggregate amount of $222.5 million, net of an original issue discount of $2.5 million (collectively, the "New Issuances"). Transaction costs of $4.2 million relating to these borrowings were capitalized as deferred financing costs and are being amortized to interest expense using the effective interest method over the terms of the respective borrowings. Transaction costs of $2.6 million relating to the portion of these borrowings deemed to be a modification of terms with creditors participating in both the New Issuances and the 10.25% Senior Notes redemption were expensed as an early extinguishment of debt in the quarter ended September 30, 2013.
	Interest:
	(i)	5.25% Senior Notes: Interest is payable semi-annually on February 1 and August 1 of each year at a rate of 5.25% per year, and commenced on February 1, 2014.
	(ii)	Term Loan: Bears interest by reference to a base rate or the LIBOR rate, plus an applicable margin of 3.00% or 4.00%, respectively. The base rate is subject to a floor of 2.00%, and the LIBOR rate is subject to a floor of 1.00%. In the case of LIBOR loans, interest is paid according to the respective LIBOR maturity, and in the case of base rate loans, interest is paid quarterly on the last business day of the quarter. The effective interest rate on borrowings outstanding as of December 31, 2014 was approximately 5.00% (March 31, 2014 - 5.00%).
	Maturity:
	(i)	5.25% Senior Notes: August 1, 2018
	(ii)	Term Loan: July 19, 2020
	Covenants. The 5.25% Senior Notes and Term Loan contain certain restrictions and covenants that, subject to certain exceptions, limit the Company’s ability to incur additional indebtedness, pay dividends or repurchase the Company’s common shares, make certain loans or investments, and sell or otherwise dispose of certain assets subject to certain conditions, among other limitations. As of December 31, 2014, the Company was in compliance with all applicable covenants.
	10.25% Senior Notes
	Repurchases. In June 2013, Lions Gate Entertainment, Inc. ("LGEI"), the Company's wholly-owned subsidiary, paid $4.3 million to repurchase $4.0 million of aggregate principal amount (carrying value - $4.0 million) of the 10.25% Senior Notes. The Company recorded a loss on extinguishment in the quarter ended June 30, 2013 of $0.5 million, which included $0.2 million of deferred financing costs written off.
	Redemptions. In July 2013, the Company called for early redemption of the $432.0 million remaining outstanding principal amount of the 10.25% Senior Notes. The 10.25% Senior Notes were due November 1, 2016, but were redeemable by the Company at any time prior to November 1, 2013 at a redemption price of 100% of the principal amount plus the Applicable Premium, as defined in the indenture, and accrued and unpaid interest to the date of redemption. In July 2013, the proceeds from the issuance of the 5.25% Senior Notes and the Term Loan discussed above, whose principal amount collectively totaled $450.0 million, together with cash on hand and borrowings under the Company's senior revolving credit facility, were used to fund the discharge of the 10.25% Senior Notes. In conjunction with the early redemption of the 10.25% Senior Notes, the Company paid $34.3 million, representing the present value of interest through the first call date of November 1, 2013 and related call premium pursuant to the terms of the indenture governing the 10.25% Senior Notes. This, along with $19.8 million of deferred financing costs and unamortized debt discount related to the redeemed notes, will be amortized over the life of the New Issuances to the extent deemed to be a modification of terms with creditors participating in both the New Issuances and the 10.25% Senior Notes redemption. The remaining amount of those costs plus certain New Issuance costs (as discussed above) amounting to $35.9 million in aggregate was expensed as an early extinguishment of debt in the quarter ended September 30, 2013.
	Convertible Senior Subordinated Notes
	Outstanding Amount and Terms. The following table sets forth the convertible senior subordinated notes outstanding and certain key terms of these notes at December 31, 2014 and March 31, 2014:
			Maturity Date or Next Holder Redemption	Conversion Price at December 31, 2014		December 31, 2014									March 31, 2014
	Convertible Senior Subordinated Notes		Date			Principal			Unamortized Discount				Net Carrying Amount		Principal		Unamortized Discount			Net Carrying Amount
						(Amounts in thousands)
	October 2004 2.9375% Notes		N/A	N/A		$	—		$	—			$	—	$	115	$	—		$	115
	April 2009 3.625% Notes		15-Mar-15	$8.17		16,174			(370		)		15,804		40,220		(4,605		)	35,615
	January 2012 4.00% Notes		11-Jan-17	$10.40		41,850			(4,383		)		37,467		41,850		(5,792		)	36,058
	April 2013 1.25% Notes		15-Apr-18	$29.71		60,000			—				60,000		60,000		—			60,000
						$	118,024		$	(4,753	)		$	113,271	$	142,185	$	(10,397	)	$	131,788
	April 2009 3.625% Notes: In April 2009, LGEI issued approximately $66.6 million of April 2009 3.625% Notes, of which $16.2 million was allocated to the equity component. Interest is payable semi-annually on March 15 and September 15 of each year. The notes mature on March 15, 2025, and are redeemable by the Company on or after March 15, 2015, at a price equal to 100% of the principal amount to be redeemed, plus unpaid interest through the date of redemption. The holder may require LGEI to repurchase the April 2009 3.625% Notes on March 15, 2015, 2018 and 2023 or upon a “designated event,” (as defined in the governing indenture), at a price equal to 100% of the principal amount to be repurchased plus unpaid interest.
	January 2012 4.00% Notes: In January 2012, LGEI issued approximately $45.0 million of January 2012 4.00% Notes, of which $10.1 million was allocated to the equity component. Interest is payable semi-annually on January 15 and July 15 of each year.
	April 2013 1.25% Notes: In April 2013, LGEI issued approximately $60.0 million in aggregate principal amount of April 2013 1.25% Notes. Interest is payable semi-annually on April 15 and October 15 of each year, and commenced on October 15, 2013.
	Conversion Features: The convertible senior subordinated notes are convertible, at any time, into the number of common shares of the Company determined by the principal amount being converted divided by the conversion price, subject to adjustment in certain circumstances.
	The April 2009 3.625% Notes and the January 2012 4.00% Notes provide that upon conversion, the Company has the option to deliver, in lieu of common shares, cash or a combination of cash and common shares of the Company. Accounting rules require that convertible debt instruments that may be settled in cash upon conversion (including partial cash settlement) are recorded by separately accounting for the liability and equity component (i.e., conversion feature), thereby reducing the principal amount with a debt discount that is amortized as interest expense over the expected life of the note using the effective interest method. The effective interest rate on the liability component of these notes is as follows: April 2009 3.625% Notes - 17.26%; January 2012 4.00% Notes - 9.56%.
	The April 2013 1.25% Notes are convertible only into the Company's common shares and do not carry an option to be settled in cash upon conversion, and accordingly, have been recorded at their principal amount (not reduced by a debt discount for the equity component).
	Conversions. In the nine months ended December 31, 2014, $24.0 million of the principal amount of the April 2009 3.625% Notes were converted into 2,929,899 common shares at a conversion price of approximately $8.21 per share, and $0.1 million of the principal amount of the October 2004 2.9375% Notes were converted into 8,634 common shares at a conversion price of approximately $11.46 per share. The Company recorded a loss on extinguishment of debt in the three and nine months ended December 31, 2014 of $0.7 million and $1.3 million, respectively, representing the excess of the fair value of the liability component of the April 2009 3.625% Notes converted over their carrying values, plus the deferred financing costs written off.
	Interest Expense. Interest expense recognized for the convertible senior subordinated notes for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
	December 31,						December 31,
	2014			2013			2014				2013
	(Amounts in thousands)
Interest Expense
Contractual interest coupon	$	776		$	1,191		$	2,705			$	3,581
Amortization of discount on liability component and debt issuance costs	1,061			2,195			4,322				6,432
	$	1,837		$	3,386		$	7,027			$	10,013

Participations_and_Residuals

Participations and Residuals	9 Months Ended
	Dec. 31, 2014
Participations And Residuals [abstract]
Participations And Residuals	Participations and Residuals
	The Company expects approximately 58% of accrued participations and residuals will be paid during the one-year period ending December 31, 2015.

Film_Obligations_and_Productio

Film Obligations and Production Loans	9 Months Ended
	Dec. 31, 2014
Film Obligations And Production Loans [Abstract]
Film Obligations And Production Loans	Film Obligations and Production Loans
		December 31,		March 31,
		2014		2014
		(Amounts in thousands)
	Film obligations	$	46,769	$	80,904
	Production loans	690,796		418,883
	Total film obligations and production loans	$	737,565	$	499,787
	The following table sets forth future annual repayment of film obligations and production loans as of December 31, 2014:
		Three Months Ended
		March 31,		Year Ended March 31,
		2015		2016		2017		2018		2019		Thereafter		Total
		(Amounts in thousands)
	Film obligations	$	24,612	$	16,680	$	2,964	$	2,000	$	1,000	$	—	$	47,256
	Production loans	85,884		391,781		213,131		—		—		—		690,796
		$	110,496	$	408,461	$	216,095	$	2,000	$	1,000	$	—	738,052
	Less imputed interest on film obligations													(487		)
														$	737,565
	Film Obligations
	Film obligations include minimum guarantees, which represent amounts payable for film rights that the Company has acquired and certain theatrical marketing obligations for amounts received from third parties that are contractually committed for theatrical marketing expenditures associated with specific titles.
	Production Loans
	Production loans represent individual loans for the production of film and television programs that the Company produces. The majority of production loans have contractual repayment dates either at or near the expected completion date, with the exception of certain loans containing repayment dates on a longer term basis, and incur interest at rates ranging from 3.26% to 3.51%.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements
	Fair Value
	Accounting guidance and standards about fair value define fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.
	Fair Value Hierarchy
	Accounting guidance and standards about fair value establish a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The accounting guidance and standards establish three levels of inputs that may be used to measure fair value:
	•	Level 1 — Quoted prices in active markets for identical assets or liabilities.
	•	Level 2 — Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 liabilities that are not required to be measured at fair value on a recurring basis include the Company’s convertible senior subordinated notes, production loans, 5.25% Senior Notes, and Term Loan, which are priced using discounted cash flow techniques that use observable market inputs, such as LIBOR-based yield curves, three- and seven-year swap rates, and credit ratings.
	•	Level 3 — Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities. The Company measures the fair value of its investment in POP's (formerly TVGN's) Mandatorily Redeemable Preferred Stock Units using primarily a discounted cash flow analysis based on the expected cash flows of the investment. The analysis reflects the contractual terms of the investment, including the period to maturity, and uses a discount rate commensurate with the risk associated with the investment.
	The following table sets forth the carrying values and fair values of the Company’s investment in POP's mandatorily redeemable preferred stock units and outstanding debt at December 31, 2014 and March 31, 2014:
		December 31, 2014				March 31, 2014
		(Amounts in thousands)
		Carrying		Fair Value		Carrying Value		Fair Value
		Value
				(Level 3)				(Level 3)
	Assets:
	Investment in POP's Mandatorily Redeemable Preferred Stock Units	$	92,134	$	116,938	$	86,298	$	99,907
		Carrying		Fair Value		Carrying Value		Fair Value
		Value
				(Level 2)				(Level 2)
	Liabilities:
	October 2004 2.9375% Notes	$	—	$	—	$	115	$	111
	April 2009 3.625% Notes	15,804		16,305		35,615		40,140
	January 2012 4.00% Notes	37,467		41,435		36,058		41,401
	April 2013 1.25% Notes	60,000		51,834		60,000		51,411
	Production loans	690,796		690,796		418,883		418,883
	5.25% Senior Notes	225,000		229,923		225,000		223,313
	Term Loan	223,021		226,125		222,753		225,844
		$	1,252,088	$	1,256,418	$	998,424	$	1,001,103

Net_Income_Per_Share

Net Income Per Share	9 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Net Income Per Share	Net Income Per Share
	Basic net income per share is calculated based on the weighted average common shares outstanding for the period. Basic net income per share for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014		2013
		(Amounts in thousands, except per share amounts)
	Basic Net Income Per Common Share:
	Numerator:
	Net income	$	98,185		$	88,763		$	162,227	$	102,885
	Denominator:
	Weighted average common shares outstanding	139,963			137,946			138,618		137,097
	Basic Net Income Per Common Share	$	0.7		$	0.64		$	1.17	$	0.75
	Diluted net income per common share reflects the potential dilutive effect, if any, of the conversion of convertible senior subordinated notes under the "if converted" method. Diluted net income per common share also reflects share purchase options, including equity-settled share appreciation rights and restricted share units ("RSUs") using the treasury stock method when dilutive, and any contingently issuable shares when dilutive. Diluted net income per common share for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014		2013
		(Amounts in thousands, except per share amounts)
	Diluted Net Income Per Common Share:
	Numerator:
	Net income	$	98,185		$	88,763		$	162,227	$	102,885
	Add:
	Interest on convertible notes, net of tax	1,163			2,137			4,456		6,315
	Numerator for Diluted Net Income Per Common Share	$	99,348		$	90,900		$	166,683	$	109,200
	Denominator:
	Weighted average common shares outstanding	139,963			137,946			138,618		137,097
	Effect of dilutive securities:
	Conversion of notes	8,360			13,815			9,995		13,842
	Share purchase options	2,943			2,797			2,662		2,619
	Restricted share units	447			579			441		639
	Adjusted weighted average common shares outstanding	151,713			155,137			151,716		154,197
	Diluted Net Income Per Common Share	$	0.65		$	0.59		$	1.1	$	0.71
	For the three and nine months ended December 31, 2014 and 2013, the Company's outstanding common shares issuable presented below were excluded from diluted net income per common share because their inclusion would have had an anti-dilutive effect.
		Three Months Ended					Nine Months Ended
		December 31,					December 31,
		2014		2013			2014		2013
		(Amounts in thousands)
	Anti-dilutive shares issuable
	Share purchase options	3,122		2,630			4,334		2,203
	Restricted share units	97		117			144		52
	Contingently issuable shares	298		451			286		446
	Total weighted average anti-dilutive shares issuable excluded from Diluted Net Income Per Common Share	3,517		3,198			4,764		2,701

Capital_Stock

Capital Stock	9 Months Ended
	Dec. 31, 2014
Equity and Share-based Compensation [Abstract]
Capital Stock	Capital Stock
	(a) Common Shares
	The Company had 500 million authorized common shares at December 31, 2014 and March 31, 2014. The table below outlines common shares reserved for future issuance:
		December 31,			March 31,
		2014			2014
		(Amounts in thousands)
	Stock options outstanding, average exercise price $22.06 (March 31, 2014 - $20.83)	12,104			10,894
	Restricted share units — unvested	1,784			2,139
	Share purchase options and restricted share units available for future issuance	7,643			3,471
	Shares issuable upon conversion of October 2004 2.9375% Notes at conversion price of $11.46 per share at March 31, 2014	—			10
	Shares issuable upon conversion of April 2009 3.625% Notes at conversion price of $8.17 per share (March 31, 2014 - $8.22)	1,980			4,893
	Shares issuable upon conversion of January 2012 4.00% Notes at conversion price of $10.40 per share (March 31, 2014 - $10.46)	4,024			4,001
	Shares issuable upon conversion of April 2013 1.25% Notes at conversion price of $29.71 per share (March 31, 2014 - $29.89)	2,020			2,007
	Shares reserved for future issuance	29,555			27,415
	In September 2012, the Company adopted the 2012 Performance Incentive Plan, as amended on September 9, 2014 (the "2012 Plan"). The 2012 Plan provides for the issuance of up to 27.6 million common shares of the Company, stock options, share appreciation rights, restricted shares, stock bonuses and other forms of awards granted or denominated in common shares or units of common shares of the Company, as well as certain cash bonus awards to eligible directors of the Company, officers or employees of the Company or any of its subsidiaries, and certain consultants and advisors to the Company or any of its subsidiaries.
	(b) Share-based Compensation
	The Company recognized the following share-based compensation expense during the three and nine months ended December 31, 2014, and 2013:
		Three Months Ended							Nine Months Ended
		December 31,							December 31,
		2014				2013			2014			2013
		(Amounts in thousands)
	Compensation Expense:
	Stock Options	$	7,551			$	5,393		$	25,560		$	15,131
	Restricted Share Units and Other Share-based Compensation	6,477				6,597			19,515			22,032
	Share Appreciation Rights	1,104				74			3,800			15,036
		15,132				12,064			48,875			52,199
	Impact of accelerated vesting on stock options and restricted share units(1)	—				—			1,194			—
	Total share-based compensation expense	$	15,132			$	12,064		$	50,069		$	52,199
	Tax impact(2)	(5,547		)		(4,464		)	(18,355		)	(19,314		)
	Reduction in net income	$	9,585			$	7,600		$	31,714		$	32,885
	____________________________
	-1	Represents the impact of the acceleration of certain vesting schedules for stock options and restricted share units pursuant to the severance arrangements related to the integration of the marketing operations of the Company's Lionsgate and Summit film labels.
	-2	Represents the income tax benefit recognized in the statements of income for share-based compensation arrangements.
	The following table sets forth the stock option and restricted share unit activity during the nine months ended December 31, 2014:
		Stock Options			Weighted-Average Exercise Price		Restricted Share Units		Weighted-Average Grant-Date Fair Value
	Outstanding at March 31, 2014	10,894,010			$20.83		2,139,175		$23.38
	Granted	1,505,267			$29.89		766,652		$29.48
	Options exercised or RSUs vested	(268,247	)		$16.42		(1,108,305	)	$22.17
	Forfeited or expired	(27,238	)		$17.65		(14,011	)	$18.98
	Outstanding at December 31, 2014	12,103,792			$22.06		1,783,511		$27.02
	During the nine months ended December 31, 2014, 75,000 cash-settled share appreciation rights were exercised resulting in a cash payment of $1.7 million.
	The excess tax benefits realized from tax deductions associated with option exercises and RSU activity were $6.8 million and nil for the nine months ended December 31, 2014 and 2013, respectively.
	Total unrecognized compensation cost related to unvested stock options and restricted share unit awards at December 31, 2014 are $57.4 million and $30.1 million, respectively, and are expected to be recognized over a weighted average period of 2.1 and 1.7 years, respectively.
	(c) Share Repurchases
	On December 17, 2013, our Board of Directors authorized the Company to increase our previously announced share repurchase plan from a total authorization of $150 million to $300 million. From April 1, 2014 through December 31, 2014, 4.6 million common shares were repurchased for an aggregate price of $123.6 million (weighted average repurchase price of $26.91 per share). See Note 18 for shares repurchased through January 21, 2015.
	(d) Dividends
	On December 12, 2014, the Company's Board of Directors declared a quarterly cash dividend of $0.07 per common share payable on February 6, 2015, to shareholders of record as of December 31, 2014. As the Company had an accumulated deficit at the time this dividend was declared, this dividend was recorded as a reduction to common shares on the unaudited consolidated statement of shareholders' equity at December 31, 2014. As of December 31, 2014, the Company had $9.8 million of cash dividends payable included in accounts payable and accrued liabilities on the unaudited consolidated balance sheet.

Income_Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The income tax provision for the three and nine months ended December 31, 2014 and 2013 is calculated by estimating the Company's annual effective tax rate (estimated annual tax provision divided by estimated annual income before income taxes), and then applying the effective tax rate to income before income taxes for the quarter, plus or minus the tax effects of items that relate discretely to the quarter, if any.
	For the three months ended December 31, 2014, the tax provision included a discrete benefit of $0.3 million, and for the nine months ended December 31, 2014 the tax provision included a discrete charge of $4.2 million associated with the gain on sale of our interest in FEARnet and a discrete charge of $0.4 million from other discrete items. For the nine months ended December 31, 2013, the tax provision included a discrete benefit of $12.0 million from the reversal of a valuation allowance related to the Company's net deferred tax assets in the Canadian tax jurisdiction and other discrete items.

Government_Assistance

Government Assistance	9 Months Ended
	Dec. 31, 2014
Government Assistance [Abstract]
Government Assistance	Government Assistance
	Tax credits earned for film and television production activity for the three and nine months ended December 31, 2014 totaled $103.5 million and $193.0 million, respectively (three and nine months ended December 31, 2013 - $15.0 million and $62.0 million, respectively) and are recorded as a reduction of the cost of the related film and television program. Accounts receivable at December 31, 2014 includes $272.9 million with respect to tax credits receivable (March 31, 2014 - $115.3 million).
	The Company is subject to routine inquiries and review by regulatory authorities of its various incentive claims which have been received or are receivable. Adjustments of claims have generally not been material historically.

Segment_Information

Segment Information	9 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Segment Information	Segment Information
	Accounting guidance requires the Company to make certain disclosures about each reportable segment. The Company’s reportable segments are determined based on the distinct nature of their operations and each segment is a strategic business unit that offers different products and services and is managed separately. The Company has two reportable business segments as of December 31, 2014: Motion Pictures and Television Production.
	Motion Pictures consists of the development and production of feature films, acquisition of North American and worldwide distribution rights, North American theatrical, home entertainment and television distribution of feature films produced and acquired, and worldwide licensing of distribution rights to feature films produced and acquired.
	Television Production consists of the development, production and worldwide distribution of television productions including television series, television movies and mini-series and non-fiction programming.
	Segment information by business unit is as follows:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014			2013
		(Amounts in thousands)
	Segment revenues
	Motion Pictures	$	590,072		$	757,646		$	1,320,012		$	1,630,599
	Television Production	161,227			82,293			433,546			277,797
		$	751,299		$	839,939		$	1,753,558		$	1,908,396
	Direct operating expenses
	Motion Pictures	$	260,309		$	324,124		$	583,792		$	737,297
	Television Production	140,267			73,389			362,048			228,459
		$	400,576		$	397,513		$	945,840		$	965,756
	Distribution and marketing
	Motion Pictures	$	162,884		$	222,979		$	396,587		$	527,774
	Television Production	8,555			10,556			25,050			22,723
		$	171,439		$	233,535		$	421,637		$	550,497
	Gross segment contribution
	Motion Pictures	$	166,879		$	210,543		$	339,633		$	365,528
	Television Production	12,405			(1,652		)	46,448			26,615
		$	179,284		$	208,891		$	386,081		$	392,143
	Segment general and administration
	Motion Pictures	$	18,669		$	16,882		$	54,252		$	49,316
	Television Production	3,172			3,488			10,081			10,043
		$	21,841		$	20,370		$	64,333		$	59,359
	Segment profit (loss)
	Motion Pictures	$	148,210		$	193,661		$	285,381		$	316,212
	Television Production	9,233			(5,140		)	36,367			16,572
		$	157,443		$	188,521		$	321,748		$	332,784
	Gross segment contribution is defined as segment revenue less segment direct operating and distribution and marketing expenses.
	Segment profit (loss) is defined as segment revenue less segment direct operating, distribution and marketing, and general and administration expenses. The reconciliation of total segment profit to the Company’s income before income taxes is as follows:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014			2013
		(Amounts in thousands)
	Company’s total segment profit	$	157,443		$	188,521		$	321,748		$	332,784
	Shared services and corporate expenses:
	Share-based compensation expense	(15,132		)	(12,064		)	(48,875		)	(52,199		)
	Restructuring charges(1)	(766		)	—			(7,008		)	—
	Administrative proceeding(2)	—			(7,500		)	—			(7,500		)
	Other shared services and corporate expenses	(23,668		)	(25,643		)	(66,759		)	(67,062		)
	Total shared services and corporate expenses	(39,566		)	(45,207		)	(122,642		)	(126,761		)
	Depreciation and amortization	(1,708		)	(1,530		)	(4,685		)	(4,766		)
	Operating income	116,169			141,784			194,421			201,257
	Interest expense	(13,551		)	(15,574		)	(39,594		)	(52,560		)
	Interest and other income	623			1,771			2,188			4,750
	Loss on extinguishment of debt	(690		)	—			(1,276		)	(36,653		)
	Equity interests income (loss)	10,898			(1,321		)	37,353			13,158
	Income before income taxes	$	113,449		$	126,660		$	193,092		$	129,952
	________________________
	-1	Restructuring charges in the nine months ended December 31, 2014 primarily consist of severance costs associated with the integration of the marketing operations of the Company's Lionsgate and Summit film labels and costs related to the move of our international sales and distribution organization to the United Kingdom. Approximately $1.2 million of the costs are non-cash charges resulting from the acceleration of vesting of stock awards (see Note 10).
	-2	Administrative proceeding represents the settlement of an administrative order.
	The following table sets forth significant assets as broken down by segment and other unallocated assets as of December 31, 2014 and March 31, 2014:
		December 31, 2014									March 31, 2014
		Motion			Television			Total			Motion			Television		Total
		Pictures			Production						Pictures			Production
		(Amounts in thousands)
	Significant assets by segment
	Accounts receivable	$	611,888		$	362,691		$	974,579		$	580,906		$	304,665	$	885,571
	Investment in films and television programs, net	1,116,562			330,831			1,447,393			979,576			294,997		1,274,573
Goodwill	294,367			28,961			323,328			294,367			28,961		323,328
	$	2,022,817		$	722,483		$	2,745,300		$	1,854,849		$	628,623	$	2,483,472
Other unallocated assets (primarily cash, other assets, and equity method investments)							396,205								368,160
Total assets							$	3,141,505							$	2,851,632
The following table sets forth acquisition of investment in films and television programs as broken down by segment for the three and nine months ended December 31, 2014 and 2013:
	Three Months Ended						Nine Months Ended
	December 31,						December 31,
	2014			2013			2014			2013
	(Amounts in thousands)
Acquisition of investment in films and television programs
Motion Pictures	$	89,041		$	212,598		$	517,385		$	432,208
Television Production	87,409			142,049			298,084			260,735
	$	176,450		$	354,647		$	815,469		$	692,943
Purchases of property and equipment amounted to $6.8 million and $11.3 million for the three and nine months ended December 31, 2014, respectively, and $2.7 million and $6.1 million for the three and nine months ended December 31, 2013, respectively, primarily pertaining to purchases for the Company’s corporate headquarters.

Contingencies

Contingencies	9 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies
	Two purported Lions Gate stockholders have initiated legal proceedings in the United States District Court for the Southern District of New York relating to the March 13, 2014 announcement that the Company had entered into an administrative order with the United States Securities and Exchange Commission (the "SEC") that resolved the SEC’s investigation into transactions that the Company announced on July 20, 2010. These actions are captioned Laborers Pension Trust Fund-Detroit & Vicinity v. Lions Gate Entertainment Corp., et al., Case No. 14 CV 5197 (filed July 11, 2014) and Barger v. Lions Gate Entertainment Corp., Case No. 14 CV 5477 (filed July 21, 2014). The actions allege, among other things, that the Company and certain of its current and former officers and directors violated the federal securities laws by failing to disclose the SEC’s investigation prior to March 13, 2014. On October 28, 2014, the court consolidated the actions under the caption In re Lions Gate Entertainment Corp. Securities Litigation, Case No. 1:14-cv-05197-JGK, and appointed lead plaintiff and lead counsel. A consolidated amended complaint was filed December 29, 2014. The Company does not believe these actions have any merit and intends to vigorously defend against them.
	In addition, on May 16, 2014, the Company received a letter from another purported stockholder, Arkansas Teachers Retirement System, demanding that the Company seek to recover the costs of the SEC investigation, including the fine paid, from the directors who were on the board at the time the July 20, 2010 transactions occurred. The board is considering the demand as provided by law. On October 1, 2014, Arkansas Teachers Retirement System filed a petition in the Supreme Court of British Columbia seeking an order granting it leave to prosecute the claims in the name and on behalf of Lions Gate.
	From time to time, the Company is involved in other claims and legal proceedings arising in the normal course of business. While the resolution of these matters cannot be predicted with certainty, we do not believe, based on current knowledge, that the outcome of any currently pending legal proceedings in which the Company is currently involved will have a material adverse effect on the Company's consolidated financial position, results of operations or cash flow.

Consolidating_Financial_Inform

Consolidating Financial Information - Convertible Senior Subordinated Notes (Convertible Senior Subordinated Notes [Member])	9 Months Ended
	Dec. 31, 2014
Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Consolidating Financial Information - Convertible Senior Subordinated Notes	Consolidating Financial Information — Convertible Senior Subordinated Notes
	The April 2009 3.625% Notes, the January 2012 4.00% Notes, and the April 2013 1.25% Notes by their terms, are fully and unconditionally guaranteed by the Company. LGEI, the issuer of the April 2009 3.625% Notes, the January 2012 4.00% Notes, and the April 2013 1.25% Notes that are guaranteed by the Company, is 100% owned by the parent company guarantor, Lions Gate Entertainment Corp.
	The following tables present condensed consolidating financial information as of December 31, 2014 and March 31, 2014, and for the nine months ended December 31, 2014 and 2013 for (1) the Company, on a stand-alone basis, (2) LGEI, on a stand-alone basis, (3) the non-guarantor subsidiaries of the Company (including the subsidiaries of LGEI), on a combined basis (collectively, the “Non-guarantor Subsidiaries”) and (4) the Company, on a consolidated basis.
		As of
		December 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	BALANCE SHEET
	Assets
	Cash and cash equivalents	$	839		$	15,501		$	12,546		$	—		$	28,886
	Restricted cash	—			7,508			—			—			7,508
	Accounts receivable, net	741			5,581			968,257			—			974,579
	Investment in films and television programs, net	—			6,394			1,440,999			—			1,447,393
	Property and equipment, net	—			20,685			1,745			—			22,430
	Equity method investments	—			5,947			205,800			(67		)	211,680
	Goodwill	10,172			—			313,156			—			323,328
	Other assets	3,636			65,305			8,467			(6,036		)	71,372
	Deferred tax assets	6,766			38,974			8,589			—			54,329
	Subsidiary investments and advances	1,273,816			1,277,306			2,055,224			(4,606,346		)	—
		$	1,295,970		$	1,443,201		$	5,014,783		$	(4,612,449	)	$	3,141,505
	Liabilities and Shareholders’ Equity (Deficiency)
	Senior revolving credit facility	$	160,500		$	—		$	—		$	—		$	160,500
	5.25% Senior Notes	225,000			—			—			—			225,000
	Term Loan	223,021			—			—			—			223,021
	Accounts payable and accrued liabilities	19,453			69,295			182,353			—			271,101
	Participations and residuals	—			3,417			459,676			—			463,093
	Film obligations and production loans	—			—			737,565			—			737,565
	Convertible senior subordinated notes	—			113,271			—			—			113,271
	Deferred revenue	—			8,813			271,145			—			279,958
	Intercompany payable	—			1,414,020			1,991,164			(3,405,184		)	—
	Shareholders’ equity (deficiency)	667,996			(165,615		)	1,372,880			(1,207,265		)	667,996
		$	1,295,970		$	1,443,201		$	5,014,783		$	(4,612,449	)	$	3,141,505
		Nine Months Ended
		December 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
					(Amounts in thousands)
	STATEMENT OF INCOME
	Revenues	$	—		$	21,565		$	1,732,520		$	(527	)	$	1,753,558
	EXPENSES:
	Direct operating	2			3,243			942,595			—			945,840
	Distribution and marketing	—			1,575			420,062			—			421,637
	General and administration	2,383			115,942			69,010			(360		)	186,975
	Depreciation and amortization	—			2,721			1,964			—			4,685
	Total expenses	2,385			123,481			1,433,631			(360		)	1,559,137
	OPERATING INCOME (LOSS)	(2,385		)	(101,916		)	298,889			(167		)	194,421
	Other expenses (income):
	Interest expense	25,919			138,139			96,941			(221,405		)	39,594
	Interest and other income	(126,019		)	(2,766		)	(94,457		)	221,054			(2,188		)
	Loss on extinguishment of debt	—			1,276			—			—			1,276
	Total other expenses (income)	(100,100		)	136,649			2,484			(351		)	38,682
	INCOME (LOSS) BEFORE EQUITY INTERESTS AND INCOME TAXES	97,715			(238,565		)	296,405			184			155,739
	Equity interests income (loss)	66,045			317,176			37,224			(383,092		)	37,353
	INCOME (LOSS) BEFORE INCOME TAXES	163,760			78,611			333,629			(382,908		)	193,092
	Income tax provision (benefit)	1,533			12,566			52,982			(36,216		)	30,865
	NET INCOME (LOSS)	162,227			66,045			280,647			(346,692		)	162,227
	Foreign currency translation adjustments	(3,473		)	(4,383		)	(1,301		)	4,991			(4,166		)
	Net unrealized gain on foreign exchange contracts, net of tax	—			—			693			—			693
	COMPREHENSIVE INCOME (LOSS)	$	158,754		$	61,662		$	280,039		$	(341,701	)	$	158,754
		Nine Months Ended
		December 31, 2014
	Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
	Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
	Corp.			Inc.
	(Amounts in thousands)
STATEMENT OF CASH FLOWS
NET CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES	$	93,761		$	16,210		$	(273,012	)	$	—		$	(163,041	)
INVESTING ACTIVITIES:
Proceeds from the sale of equity method investees	—			—			14,575			—			14,575
Investment in equity method investees	—			(2,150		)	(12,600		)	—			(14,750		)
Other investments	—			(2,000		)	—			—			(2,000		)
Purchases of property and equipment	—			(9,309		)	(1,984		)	—			(11,293		)
NET CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES	—			(13,459		)	(9		)	—			(13,468		)
FINANCING ACTIVITIES:
Senior revolving credit facility - borrowings	681,500			—			—			—			681,500
Senior revolving credit facility - repayments	(618,619		)	—			—			—			(618,619		)
Convertible senior subordinated notes - repurchases	—			(16		)	—			—			(16		)
Production loans - borrowings	—			—			533,781			—			533,781
Production loans - repayments	—			—			(261,868		)	—			(261,868		)
Repurchase of common shares	(129,859		)	—			—			—			(129,859		)
Dividends paid	(23,536		)	—			—			—			(23,536		)
Excess tax benefits on equity-based compensation awards	—			6,767			—			—			6,767
Exercise of stock options	4,404			—			—			—			4,404
Tax withholding required on equity awards	(14,939		)	—			—			—			(14,939		)
NET CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES	(101,049		)	6,751			271,913			—			177,615
NET CHANGE IN CASH AND CASH EQUIVALENTS	(7,288		)	9,502			(1,108		)	—			1,106
FOREIGN EXCHANGE EFFECTS ON CASH	(1		)	—			2,089			—			2,088
CASH AND CASH EQUIVALENTS — BEGINNING OF PERIOD	8,128			5,999			11,565			—			25,692
CASH AND CASH EQUIVALENTS — END OF PERIOD	$	839		$	15,501		$	12,546		$	—		$	28,886
	As of
	March 31, 2014
	Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
	Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
	Corp.			Inc.
	(Amounts in thousands)
BALANCE SHEET
Assets
Cash and cash equivalents	$	8,128		$	5,999		$	11,565		$	—		$	25,692
Restricted cash	—			8,925			—			—			8,925
Accounts receivable, net	688			2,514			882,369			—			885,571
Investment in films and television programs, net	(18		)	6,394			1,266,703			1,494			1,274,573
Property and equipment, net	—			14,185			367			—			14,552
Equity method investments	—			3,668			178,273			—			181,941
Goodwill	10,172			—			313,156			—			323,328
Other assets	4,113			67,612			5,682			(6,340		)	71,067
Deferred tax assets	8,417			48,125			9,441			—			65,983
Subsidiary investments and advances	1,118,356			1,065,274			1,532,070			(3,715,700		)	—
	$	1,149,856		$	1,222,696		$	4,199,626		$	(3,720,546	)	$	2,851,632
Liabilities and Shareholders’ Equity (Deficiency)
Senior revolving credit facility	$	97,619		$	—		$	—		$	—		$	97,619
5.25% Senior Notes	225,000			—			—			—			225,000
Term Loan	222,753			—			—			—			222,753
Accounts payable and accrued liabilities	19,946			73,045			239,466			—			332,457
Participations and residuals	—			3,417			465,973			—			469,390
Film obligations and production loans	—			—			499,787			—			499,787
Convertible senior subordinated notes	—			131,788			—			—			131,788
Deferred revenue	—			11,689			276,611			—			288,300
Intercompany payable	—			1,232,310			1,480,273			(2,712,583		)	—
Shareholders’ equity (deficiency)	584,538			(229,553		)	1,237,516			(1,007,963		)	584,538
	$	1,149,856		$	1,222,696		$	4,199,626		$	(3,720,546	)	$	2,851,632
	Nine Months Ended
	December 31, 2013
	Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
	Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
	Corp.			Inc.
	(Amounts in thousands)
STATEMENT OF INCOME
Revenues	$	6,748		$	20,989		$	1,889,642		$	(8,983	)	$	1,908,396
EXPENSES:
Direct operating	(254		)	(2,933		)	968,943			—			965,756
Distribution and marketing	2			2,490			548,005			—			550,497
General and administration	1,344			124,084			61,093			(401		)	186,120
Depreciation and amortization	—			1,608			3,158			—			4,766
Total expenses	1,092			125,249			1,581,199			(401		)	1,707,139
OPERATING INCOME (LOSS)	5,656			(104,260		)	308,443			(8,582		)	201,257
Other expenses (income):
Interest expense	12,496			70,840			20,036			(50,812		)	52,560
Interest and other income	(33,592		)	(4,838		)	(17,132		)	50,812			(4,750		)
Loss on extinguishment of debt	2,600			34,053			—			—			36,653
Total other expenses (income)	(18,496		)	100,055			2,904			—			84,463
INCOME (LOSS) BEFORE EQUITY INTERESTS AND INCOME TAXES	24,152			(204,315		)	305,539			(8,582		)	116,794
Equity interests income (loss)	74,296			298,123			18,328			(377,589		)	13,158
INCOME (LOSS) BEFORE INCOME TAXES	98,448			93,808			323,867			(386,171		)	129,952
Income tax provision (benefit)	(4,437		)	19,512			67,244			(55,252		)	27,067
NET INCOME (LOSS)	102,885			74,296			256,623			(330,919		)	102,885
Foreign currency translation adjustments	3,334			(59		)	26,082			(25,253		)	4,104
Net unrealized loss on foreign exchange contracts, net of tax	—			—			(770		)	—			(770		)
COMPREHENSIVE INCOME (LOSS)	$	106,219		$	74,237		$	281,935		$	(356,172	)	$	106,219
	Nine Months Ended
	December 31, 2013
	Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
	Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
	Corp.			Inc.
	(Amounts in thousands)
STATEMENT OF CASH FLOWS
NET CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES	$	(630,884	)	$	761,836		$	14,882		$	—		$	145,834
INVESTING ACTIVITIES:
Proceeds from the sale of equity method investees	—			—			9,000			—			9,000
Investment in equity method investees	—			(750		)	(16,500		)	—			(17,250		)
Distributions from equity method investee in excess of earnings	—			—			4,169			—			4,169
Repayment of loans receivable	—			—			4,275			—			4,275
Purchases of property and equipment	—			(4,276		)	(1,840		)	—			(6,116		)
NET CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES	—			(5,026		)	(896		)	—			(5,922		)
FINANCING ACTIVITIES:
Senior revolving credit facility - borrowings	319,119			463,100			—			—			782,219
Senior revolving credit facility - repayments	(125,000		)	(801,574		)	—			—			(926,574		)
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860	440,640			—			—			—			440,640
10.25% Senior Notes - repurchases and redemptions	—			(470,584		)	—			—			(470,584		)
Convertible senior subordinated notes - borrowings	—			60,000			—			—			60,000
Production loans - borrowings	—			—			359,582			—			359,582
Production loans - repayments	—			—			(301,385		)	—			(301,385		)
Pennsylvania Regional Center credit facility - repayments	—			—			(65,000		)	—			(65,000		)
Exercise of stock options	10,869			—			—			—			10,869
Tax withholding required on equity awards	(14,376		)	—			—			—			(14,376		)
NET CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES	631,252			(749,058		)	(6,803		)	—			(124,609		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	368			7,752			7,183			—			15,303
FOREIGN EXCHANGE EFFECTS ON CASH	(210		)	—			(2,054		)	—			(2,264		)
CASH AND CASH EQUIVALENTS — BEGINNING OF PERIOD	592			36,834			24,937			—			62,363
CASH AND CASH EQUIVALENTS — END OF PERIOD	$	750		$	44,586		$	30,066		$	—		$	75,402

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	9 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities
	The Company enters into forward foreign exchange contracts to hedge its foreign currency exposures on future production expenses denominated in various foreign currencies. As of December 31, 2014, the Company had the following outstanding forward foreign exchange contracts (all outstanding contracts have maturities of less than 23 months from December 31, 2014):
	31-Dec-14
	Foreign Currency	Foreign Currency Amount			US Dollar Amount		Weighted Average Exchange Rate Per $1 USD
		(Amounts in millions)			(Amounts in millions)
	British Pound Sterling		£19.6	in exchange for		$31.60	£0.62
	Australian Dollar		A$31.9	in exchange for		$28.70	A$1.11
	Canadian Dollar		C$0.6	in exchange for		$0.60	C$1.09
	Changes in the fair value representing a net unrealized fair value gain (loss) on foreign exchange contracts that qualified as effective hedge contracts outstanding during the three and nine months ended December 31, 2014 were gains of $0.3 million and $0.7 million, respectively (2013 - losses of $0.1 million and $0.8 million, respectively), and are included in accumulated other comprehensive loss, a separate component of shareholders’ equity. Changes in the fair value representing a net unrealized fair value gain on foreign exchange contracts that did not qualify as effective hedge contracts outstanding during the three and nine months ended December 31, 2014 were nil and $0.4 million, respectively (2013 - nil) and are included in direct operating expenses in the consolidated statement of income. The Company monitors its positions with, and the credit quality of, the financial institutions that are party to its financial transactions.
	As of December 31, 2014, $6.0 million was included in other assets and $3.1 million in accounts payable and accrued liabilities (March 31, 2014 - $1.8 million in other assets) in the accompanying consolidated balance sheets related to the Company's use of foreign currency derivatives. The Company classifies its forward foreign exchange contracts within Level 2 as the valuation inputs are based on quoted prices and market observable data of similar instruments.
	During the three and nine months ended December 31, 2014, the Company did not have any significant amounts reclassified out of accumulated other comprehensive loss.

Supplementary_Cash_Flow_Statem

Supplementary Cash Flow Statement Information	9 Months Ended
	Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]
Supplementary Cash Flow Statement Information	Supplementary Cash Flow Statement Information
	The supplemental schedule of non-cash investing and financing activities for the nine months ended December 31, 2014 and 2013 is presented below.
		Nine Months Ended
		December 31,
		2014		2013
		(Amounts in thousands)
	Non-cash financing activities:
	Accrued dividends (see Note 10)	$	9,817	$	6,900
	Accrued share repurchases	$	2,106	$	—
	Conversions of convertible senior subordinated notes (see Note 5)	$	24,145	$	3,150
	There were no non-cash investing activities for the nine months ended December 31, 2014 and 2013.

Subsequent_Events_Unaudited

Subsequent Events (Unaudited)	9 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events (Unaudited)	Subsequent Events (Unaudited)
	Share Repurchases. On December 17, 2013, our Board of Directors authorized the Company to increase our previously announced share repurchase plan from a total authorization of $150 million to $300 million. Since the December 17, 2013 increase in share repurchase authorization, through January 21, 2015, we have repurchased a total of 5.3 million common shares for an aggregate price of $144.8 million (weighted average repurchase price of $27.11 per share). Of these repurchases, 0.4 million common shares were repurchased for an aggregate price of $12.9 million (weighted average repurchase price of $29.81) during the period from January 1, 2015 to January 21, 2015. As a result of these repurchases, the Company has $89.9 million of remaining capacity in its $300 million share repurchase plan as of January 21, 2015.

Net_Income_Per_Share_Policies

Net Income Per Share (Policies)	9 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Net Income Per Share	Diluted net income per common share reflects the potential dilutive effect, if any, of the conversion of convertible senior subordinated notes under the "if converted" method. Diluted net income per common share also reflects share purchase options, including equity-settled share appreciation rights and restricted share units ("RSUs") using the treasury stock method when dilutive, and any contingently issuable shares when dilutive.
	Basic net income per share is calculated based on the weighted average common shares outstanding for the period.

Investment_In_Films_And_Televi1

Investment In Films And Television Programs (Tables)	9 Months Ended
	Dec. 31, 2014
Investment In Films And Television Programs [Abstract]
Investment In Films And Television Programs
		December 31,			March 31,
		2014			2014
		(Amounts in thousands)
	Motion Pictures Segment - Theatrical and Non-Theatrical Films
	Released, net of accumulated amortization	$	454,576		$	509,831
	Acquired libraries, net of accumulated amortization	11,153			14,329
	Completed and not released	124,674			50,785
	In progress	473,052			351,047
	In development	30,765			22,336
	Product inventory	22,342			31,248
		1,116,562			979,576
	Television Production Segment - Direct-to-Television Programs
	Released, net of accumulated amortization	227,513			212,929
	In progress	96,441			76,459
	In development	6,877			5,609
		330,831			294,997
		$	1,447,393		$	1,274,573
Schedule of Acquired Libraries Unamortized Costs	The following table sets forth acquired libraries that represent titles released three years prior to the date of acquisition. These libraries are being amortized over their expected revenue stream from the acquisition date over a period up to 20 years:
				Total		Remaining	Unamortized Costs
				Amortization		Amortization
	Acquired Library		Acquisition Date	Period		Period	December 31,		March 31,
							2014		2014
				(In years)			(Amounts in thousands)
	Artisan Entertainment		December 2003	20		9	$	6,702	$	10,236
	Summit Entertainment		Jan-12	20		17	4,451		4,093
	Total acquired libraries						$	11,153	$	14,329

Equity_Method_Investments_Tabl

Equity Method Investments (Tables)	9 Months Ended
	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Carrying Amount Of Equity Method Investments	The carrying amounts of equity method investments at December 31, 2014 and March 31, 2014 were as follows:
		December 31,
		2014
	Equity Method Investee	Ownership		December 31,				March 31,
		Percentage		2014				2014
				(Amounts in thousands)
	EPIX	31.20%		$	98,416			$	78,758
	POP (formerly TVGN)	50.00%		92,134				86,298
	Other Equity Method Investments(1)	Various		21,130				16,885
				$	211,680			$	181,941
Equity Method Investee, Income (Loss)	Equity interests in equity method investments for the three and nine months ended December 31, 2014 and 2013 were as follows (income (loss)):
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
	Equity Method Investee	2014				2013				2014			2013
		(Amounts in thousands)
	EPIX	$	11,214			$	5,614			$	27,446		$	21,236
	POP (formerly TVGN)	(1,115		)		(5,223		)		(4,663		)	(3,166		)
	Other Equity Method Investments(1)	799				(1,712		)		14,570			(4,912		)
		$	10,898			$	(1,321	)		$	37,353		$	13,158
	_________________________
	(1)The Company records its share of the net income or loss of Other Equity Method Investments on a one quarter lag and, accordingly, during the three and nine months ended December 31, 2014 and 2013, the Company recorded its share of the income or loss generated by these entities for the three and nine months ended September 30, 2014 and 2013, respectively. Equity interest income from Other Equity Method Investments of $14.6 million for the nine months ended December 31, 2014 includes a gain on the sale of the Company's investment in FEARnet of $11.4 million. The Company sold all of its 34.5% interest in FEARnet on April 14, 2014, for a sales price of approximately $14.6 million. As a result of this transaction, the Company's equity interest in FEARnet was reduced to zero as of June 30, 2014.
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Summarized Balance Sheet	The following table presents summarized balance sheet data as of December 31, 2014 and March 31, 2014 for EPIX:
		December 31,				March 31,
		2014				2014
		(Amounts in thousands)
	Current assets	$	221,417			$	184,471
	Non-current assets	$	267,544			$	247,231
	Current liabilities	$	117,394			$	126,217
	Non-current liabilities	$	9,515			$	9,459
Summarized Statement Of Operations	The following table presents the summarized statement of operations for the three and nine months ended December 31, 2014 and 2013 for EPIX and a reconciliation of the net income reported by EPIX to equity interest income recorded by the Company:
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
		2014				2013				2014			2013
		(Amounts in thousands)
	Revenues	$	101,124			$	89,768			$	288,424		$	261,998
	Expenses:
	Operating expenses	59,224				60,973				178,690			182,259
	Selling, general and administrative expenses	5,863				5,791				17,503			17,054
	Operating income	36,037				23,004				92,231			62,685
	Interest and other expense	(399		)		(163		)		(1,130		)	(1		)
	Net income	$	35,638			$	22,841			$	91,101		$	62,684
	Reconciliation of net income reported by EPIX to equity interest income:
	Net income reported by EPIX	$	35,638			$	22,841			$	91,101		$	62,684
	Ownership interest in EPIX	31.15		%		31.15		%		31.15		%	31.15		%
	The Company's share of net income	11,101				7,115				28,378			19,526
	Eliminations of the Company’s share of profits on licensing sales to EPIX(1)	(1,935		)		(3,606		)		(7,007		)	(9,226		)
	Realization of the Company’s share of profits on licensing sales to EPIX(2)	2,048				2,105				6,075			10,936
	Total equity interest income recorded	$	11,214			$	5,614			$	27,446		$	21,236
	__________________
	-1	Represents the elimination of the gross profit recognized by the Company on licensing sales to EPIX in proportion to the Company's ownership interest in EPIX. The table below sets forth the revenues and gross profits recognized by the Company and the calculation of the profit eliminated for the three and nine months ended December 31, 2014 and 2013:
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
		2014				2013				2014			2013
		(Amounts in thousands)
	Revenue recognized on licensing sales to EPIX	$	15,349			$	24,740			$	41,281		$	47,871
	Gross profit on licensing sales to EPIX	$	6,213			$	11,576			$	22,493		$	29,619
	Ownership interest in EPIX	31.15		%		31.15		%		31.15		%	31.15		%
	Elimination of the Company's share of profits on licensing sales to EPIX	$	1,935			$	3,606			$	7,007		$	9,226
	-2	Represents the realization of a portion of the profits previously eliminated. This profit remains eliminated until realized by EPIX. EPIX initially records the license fee for the title as inventory on its balance sheet and amortizes the inventory over the license period. Accordingly, the profit is realized as the inventory on EPIX's books is amortized.
POP [Member]
Schedule of Equity Method Investments [Line Items]
Summarized Balance Sheet	The following table presents summarized balance sheet data as of December 31, 2014 and March 31, 2014 for POP:
		December 31,				March 31,
		2014				2014
		(Amounts in thousands)
	Current assets	$	31,594			$	27,150
	Non-current assets	$	192,430			$	196,011
	Current liabilities	$	29,583			$	30,653
	Non-current liabilities	$	6,970			$	12,334
	Redeemable preferred stock	$	377,062			$	325,204
Summarized Statement Of Operations	The following table presents the summarized statement of operations for the three and nine months ended December 31, 2014 and 2013 for POP and a reconciliation of the net loss reported by POP to equity interest loss recorded by the Company:
		Three Months Ended								Nine Months Ended
		December 31,								December 31,
		2014				2013				2014			2013
		(Amounts in thousands)
	Revenues	$	20,507			$	20,058			$	59,073		$	55,023
	Expenses:
	Cost of services	8,645				13,874				26,938			27,877
	Selling, marketing, and general and administration	11,934				12,446				34,527			32,923
	Depreciation and amortization	1,928				2,040				5,866			6,034
	Operating loss	(2,000		)		(8,302		)		(8,258		)	(11,811		)
	Other expense (income)	6				160				391			(1,230		)
	Interest expense, net	160				297				551			979
	Accretion of redeemable preferred stock units(1)	12,461				10,347				35,361			29,498
	Total interest expense, net	12,627				10,804				36,303			29,247
	Loss from continuing operations	(14,627		)		(19,106		)		(44,561		)	(41,058		)
	Loss from discontinued operations	—				(1,685		)		—			(2,799		)
	Net loss	$	(14,627	)		$	(20,791	)		$	(44,561	)	$	(43,857	)
	Reconciliation of net loss reported by POP to equity interest loss:
	Net loss reported by POP	$	(14,627	)		$	(20,791	)		$	(44,561	)	$	(43,857	)
	Ownership interest in POP	50		%		50		%		50		%	50		%
	The Company's share of net loss	(7,314		)		(10,396		)		(22,281		)	(21,929		)
	Gain on sale of the Company's 50% share of TVGuide.com(2)	—				—				—			3,960
	Accretion of dividend and interest income on redeemable preferred stock units(1)	6,231				5,173				17,681			14,749
	Elimination of the Company's share of profits on licensing sales to POP	—				—				(367		)	—
	Realization of the Company’s share of profits on licensing sales to POP	(32		)		—				304			54
	Total equity interest loss recorded	$	(1,115	)		$	(5,223	)		$	(4,663	)	$	(3,166	)
	___________________
	-1	Accretion of mandatorily redeemable preferred stock units represents POP's 10% dividend and the amortization of discount on its mandatorily redeemable preferred stock units held by the Company and the other interest holder. The Company recorded its share of this expense as income from the accretion of dividend and discount on mandatorily redeemable preferred stock units within equity interest income (loss).
	-2	Represents the gain on the May 31, 2013 sale of the Company's 50% interest in TVGuide.com. As a result of the sale, TVGuide.com is considered a discontinued operation by POP, and accordingly, the revenues and expenses of TVGuide.com prior to the transaction for all periods presented, are reflected net within the discontinued operations section of the summarized statement of operations for POP.

Other_Assets_Tables

Other Assets (Tables)	9 Months Ended
	Dec. 31, 2014
Other Assets, Unclassified [Abstract]
Other Assets	The composition of the Company’s other assets is as follows as of December 31, 2014 and March 31, 2014:
		December 31,		March 31,
		2014		2014
		(Amounts in thousands)
	Deferred financing costs, net of accumulated amortization	$	29,084	$	34,722
	Prepaid expenses and other	40,648		33,347
	Finite-lived intangible assets	1,640		2,998
		$	71,372	$	71,067

Corporate_Debt_Tables

Corporate Debt (Tables)	9 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Carrying Values of Corporate Debt, Excluding Film Obligations and Production Loans	The total carrying values of corporate debt of the Company, excluding film obligations and production loans, were as follows as of December 31, 2014 and March 31, 2014:
		December 31, 2014			March 31, 2014
		(Amounts in thousands)
	Senior revolving credit facility	$	160,500		$	97,619
	5.25% Senior Notes	225,000			225,000
	Term Loan, net of unamortized discount of $1,979 (March 31, 2014 - $2,247)	223,021			222,753
	Convertible senior subordinated notes, net of unamortized discount of $4,753 (March 31, 2014 - $10,397)	113,271			131,788
		$	721,792		$	677,160
Future Annual Contractual Principal Payment Commitments Under Corporate Debt	The following table sets forth future annual contractual principal payment commitments of corporate debt as of December 31, 2014:
			Conversion Price Per Share at December 31, 2014	Maturity Date or Next Holder Redemption Date(1)		Year Ended March 31,
	Debt Type					2015			2016				2017		2018		2019			Thereafter		Total
						(Amounts in thousands)
	Senior revolving credit facility		N/A	Sep-17		$	—		$	—			$	—	$	160,500	$	—		$	—	$	160,500
	5.25% Senior Notes		N/A	Aug-18		—			—				—		—		225,000			—		225,000
	Term Loan		N/A	Jul-20		—			—				—		—		—			225,000		225,000
	Principal amounts of convertible senior subordinated notes:
	April 2009 3.625% Notes		$8.17	Mar-15		16,174			—				—		—		—			—		16,174
	January 2012 4.00% Notes		$10.40	Jan-17		—			—				41,850		—		—			—		41,850
	April 2013 1.25% Notes		$29.71	Apr-18		—			—				—		—		60,000			—		60,000
						$	16,174		$	—			$	41,850	$	160,500	$	285,000		$	225,000	728,524
	Less aggregate unamortized discount																					(6,732		)
																						$	721,792
	____________________
	-1	The future repayment dates of the convertible senior subordinated notes represent the next redemption date by holders for each series of notes respectively, as described below.
Convertible Senior Subordinated Notes Outstanding and Certain Key Terms	The following table sets forth the convertible senior subordinated notes outstanding and certain key terms of these notes at December 31, 2014 and March 31, 2014:
			Maturity Date or Next Holder Redemption	Conversion Price at December 31, 2014		December 31, 2014									March 31, 2014
	Convertible Senior Subordinated Notes		Date			Principal			Unamortized Discount				Net Carrying Amount		Principal		Unamortized Discount			Net Carrying Amount
						(Amounts in thousands)
	October 2004 2.9375% Notes		N/A	N/A		$	—		$	—			$	—	$	115	$	—		$	115
	April 2009 3.625% Notes		15-Mar-15	$8.17		16,174			(370		)		15,804		40,220		(4,605		)	35,615
	January 2012 4.00% Notes		11-Jan-17	$10.40		41,850			(4,383		)		37,467		41,850		(5,792		)	36,058
	April 2013 1.25% Notes		15-Apr-18	$29.71		60,000			—				60,000		60,000		—			60,000
						$	118,024		$	(4,753	)		$	113,271	$	142,185	$	(10,397	)	$	131,788
Interest Expense on Convertible Senior Subordinated Notes	Interest expense recognized for the convertible senior subordinated notes for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014				2013
		(Amounts in thousands)
	Interest Expense
	Contractual interest coupon	$	776		$	1,191		$	2,705			$	3,581
	Amortization of discount on liability component and debt issuance costs	1,061			2,195			4,322				6,432
		$	1,837		$	3,386		$	7,027			$	10,013

Film_Obligations_and_Productio1

Film Obligations and Production Loans (Tables)	9 Months Ended
	Dec. 31, 2014
Film Obligations And Production Loans [Abstract]
Films Obligations And Production Loans
		December 31,		March 31,
		2014		2014
		(Amounts in thousands)
	Film obligations	$	46,769	$	80,904
	Production loans	690,796		418,883
	Total film obligations and production loans	$	737,565	$	499,787
Future Annual Repayment of Film Obligations and Production Loans	The following table sets forth future annual repayment of film obligations and production loans as of December 31, 2014:
		Three Months Ended
		March 31,		Year Ended March 31,
		2015		2016		2017		2018		2019		Thereafter		Total
		(Amounts in thousands)
	Film obligations	$	24,612	$	16,680	$	2,964	$	2,000	$	1,000	$	—	$	47,256
	Production loans	85,884		391,781		213,131		—		—		—		690,796
		$	110,496	$	408,461	$	216,095	$	2,000	$	1,000	$	—	738,052
	Less imputed interest on film obligations													(487		)
														$	737,565

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value of Investment in Mandatorily Redeemable Preferred Stock and Outstanding Debt	The following table sets forth the carrying values and fair values of the Company’s investment in POP's mandatorily redeemable preferred stock units and outstanding debt at December 31, 2014 and March 31, 2014:
		December 31, 2014				March 31, 2014
		(Amounts in thousands)
		Carrying		Fair Value		Carrying Value		Fair Value
		Value
				(Level 3)				(Level 3)
	Assets:
	Investment in POP's Mandatorily Redeemable Preferred Stock Units	$	92,134	$	116,938	$	86,298	$	99,907
		Carrying		Fair Value		Carrying Value		Fair Value
		Value
				(Level 2)				(Level 2)
	Liabilities:
	October 2004 2.9375% Notes	$	—	$	—	$	115	$	111
	April 2009 3.625% Notes	15,804		16,305		35,615		40,140
	January 2012 4.00% Notes	37,467		41,435		36,058		41,401
	April 2013 1.25% Notes	60,000		51,834		60,000		51,411
	Production loans	690,796		690,796		418,883		418,883
	5.25% Senior Notes	225,000		229,923		225,000		223,313
	Term Loan	223,021		226,125		222,753		225,844
		$	1,252,088	$	1,256,418	$	998,424	$	1,001,103

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	9 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Basic Net Income Per Common Share	Basic net income per share for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014		2013
		(Amounts in thousands, except per share amounts)
	Basic Net Income Per Common Share:
	Numerator:
	Net income	$	98,185		$	88,763		$	162,227	$	102,885
	Denominator:
	Weighted average common shares outstanding	139,963			137,946			138,618		137,097
	Basic Net Income Per Common Share	$	0.7		$	0.64		$	1.17	$	0.75
Diluted Net Income Per Common Share	Diluted net income per common share for the three and nine months ended December 31, 2014 and 2013 is presented below:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014		2013
		(Amounts in thousands, except per share amounts)
	Diluted Net Income Per Common Share:
	Numerator:
	Net income	$	98,185		$	88,763		$	162,227	$	102,885
	Add:
	Interest on convertible notes, net of tax	1,163			2,137			4,456		6,315
	Numerator for Diluted Net Income Per Common Share	$	99,348		$	90,900		$	166,683	$	109,200
	Denominator:
	Weighted average common shares outstanding	139,963			137,946			138,618		137,097
	Effect of dilutive securities:
	Conversion of notes	8,360			13,815			9,995		13,842
	Share purchase options	2,943			2,797			2,662		2,619
	Restricted share units	447			579			441		639
	Adjusted weighted average common shares outstanding	151,713			155,137			151,716		154,197
	Diluted Net Income Per Common Share	$	0.65		$	0.59		$	1.1	$	0.71
Anti-dilutive Shares Issuable	For the three and nine months ended December 31, 2014 and 2013, the Company's outstanding common shares issuable presented below were excluded from diluted net income per common share because their inclusion would have had an anti-dilutive effect.
		Three Months Ended					Nine Months Ended
		December 31,					December 31,
		2014		2013			2014		2013
		(Amounts in thousands)
	Anti-dilutive shares issuable
	Share purchase options	3,122		2,630			4,334		2,203
	Restricted share units	97		117			144		52
	Contingently issuable shares	298		451			286		446
	Total weighted average anti-dilutive shares issuable excluded from Diluted Net Income Per Common Share	3,517		3,198			4,764		2,701

Capital_Stock_Tables

Capital Stock (Tables)	9 Months Ended
	Dec. 31, 2014
Equity and Share-based Compensation [Abstract]
Common Shares Reserved For Future Issuance	The table below outlines common shares reserved for future issuance:
		December 31,			March 31,
		2014			2014
		(Amounts in thousands)
	Stock options outstanding, average exercise price $22.06 (March 31, 2014 - $20.83)	12,104			10,894
	Restricted share units — unvested	1,784			2,139
	Share purchase options and restricted share units available for future issuance	7,643			3,471
	Shares issuable upon conversion of October 2004 2.9375% Notes at conversion price of $11.46 per share at March 31, 2014	—			10
	Shares issuable upon conversion of April 2009 3.625% Notes at conversion price of $8.17 per share (March 31, 2014 - $8.22)	1,980			4,893
	Shares issuable upon conversion of January 2012 4.00% Notes at conversion price of $10.40 per share (March 31, 2014 - $10.46)	4,024			4,001
	Shares issuable upon conversion of April 2013 1.25% Notes at conversion price of $29.71 per share (March 31, 2014 - $29.89)	2,020			2,007
	Shares reserved for future issuance	29,555			27,415
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation Expense	The Company recognized the following share-based compensation expense during the three and nine months ended December 31, 2014, and 2013:
		Three Months Ended							Nine Months Ended
		December 31,							December 31,
		2014				2013			2014			2013
		(Amounts in thousands)
	Compensation Expense:
	Stock Options	$	7,551			$	5,393		$	25,560		$	15,131
	Restricted Share Units and Other Share-based Compensation	6,477				6,597			19,515			22,032
	Share Appreciation Rights	1,104				74			3,800			15,036
		15,132				12,064			48,875			52,199
	Impact of accelerated vesting on stock options and restricted share units(1)	—				—			1,194			—
	Total share-based compensation expense	$	15,132			$	12,064		$	50,069		$	52,199
	Tax impact(2)	(5,547		)		(4,464		)	(18,355		)	(19,314		)
	Reduction in net income	$	9,585			$	7,600		$	31,714		$	32,885
	____________________________
	-1	Represents the impact of the acceleration of certain vesting schedules for stock options and restricted share units pursuant to the severance arrangements related to the integration of the marketing operations of the Company's Lionsgate and Summit film labels.
	-2	Represents the income tax benefit recognized in the statements of income for share-based compensation arrangements.
Schedule of Stock Option and Restricted Share Unit Activity
		Stock Options			Weighted-Average Exercise Price		Restricted Share Units		Weighted-Average Grant-Date Fair Value
	Outstanding at March 31, 2014	10,894,010			$20.83		2,139,175		$23.38
	Granted	1,505,267			$29.89		766,652		$29.48
	Options exercised or RSUs vested	(268,247	)		$16.42		(1,108,305	)	$22.17
	Forfeited or expired	(27,238	)		$17.65		(14,011	)	$18.98
	Outstanding at December 31, 2014	12,103,792			$22.06		1,783,511		$27.02

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Segment Information By Business Unit	Segment information by business unit is as follows:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014			2013
		(Amounts in thousands)
	Segment revenues
	Motion Pictures	$	590,072		$	757,646		$	1,320,012		$	1,630,599
	Television Production	161,227			82,293			433,546			277,797
		$	751,299		$	839,939		$	1,753,558		$	1,908,396
	Direct operating expenses
	Motion Pictures	$	260,309		$	324,124		$	583,792		$	737,297
	Television Production	140,267			73,389			362,048			228,459
		$	400,576		$	397,513		$	945,840		$	965,756
	Distribution and marketing
	Motion Pictures	$	162,884		$	222,979		$	396,587		$	527,774
	Television Production	8,555			10,556			25,050			22,723
		$	171,439		$	233,535		$	421,637		$	550,497
	Gross segment contribution
	Motion Pictures	$	166,879		$	210,543		$	339,633		$	365,528
	Television Production	12,405			(1,652		)	46,448			26,615
		$	179,284		$	208,891		$	386,081		$	392,143
	Segment general and administration
	Motion Pictures	$	18,669		$	16,882		$	54,252		$	49,316
	Television Production	3,172			3,488			10,081			10,043
		$	21,841		$	20,370		$	64,333		$	59,359
	Segment profit (loss)
	Motion Pictures	$	148,210		$	193,661		$	285,381		$	316,212
	Television Production	9,233			(5,140		)	36,367			16,572
		$	157,443		$	188,521		$	321,748		$	332,784
Reconciliation Of Total Segment Profit To The Company's Income Before Income Taxes	The reconciliation of total segment profit to the Company’s income before income taxes is as follows:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014			2013
		(Amounts in thousands)
	Company’s total segment profit	$	157,443		$	188,521		$	321,748		$	332,784
	Shared services and corporate expenses:
	Share-based compensation expense	(15,132		)	(12,064		)	(48,875		)	(52,199		)
	Restructuring charges(1)	(766		)	—			(7,008		)	—
	Administrative proceeding(2)	—			(7,500		)	—			(7,500		)
	Other shared services and corporate expenses	(23,668		)	(25,643		)	(66,759		)	(67,062		)
	Total shared services and corporate expenses	(39,566		)	(45,207		)	(122,642		)	(126,761		)
	Depreciation and amortization	(1,708		)	(1,530		)	(4,685		)	(4,766		)
	Operating income	116,169			141,784			194,421			201,257
	Interest expense	(13,551		)	(15,574		)	(39,594		)	(52,560		)
	Interest and other income	623			1,771			2,188			4,750
	Loss on extinguishment of debt	(690		)	—			(1,276		)	(36,653		)
	Equity interests income (loss)	10,898			(1,321		)	37,353			13,158
	Income before income taxes	$	113,449		$	126,660		$	193,092		$	129,952
	________________________
	-1	Restructuring charges in the nine months ended December 31, 2014 primarily consist of severance costs associated with the integration of the marketing operations of the Company's Lionsgate and Summit film labels and costs related to the move of our international sales and distribution organization to the United Kingdom. Approximately $1.2 million of the costs are non-cash charges resulting from the acceleration of vesting of stock awards (see Note 10).
	-2	Administrative proceeding represents the settlement of an administrative order.
Reconciliation of Assets from Segment to Consolidated	The following table sets forth significant assets as broken down by segment and other unallocated assets as of December 31, 2014 and March 31, 2014:
		December 31, 2014									March 31, 2014
		Motion			Television			Total			Motion			Television		Total
		Pictures			Production						Pictures			Production
		(Amounts in thousands)
	Significant assets by segment
	Accounts receivable	$	611,888		$	362,691		$	974,579		$	580,906		$	304,665	$	885,571
	Investment in films and television programs, net	1,116,562			330,831			1,447,393			979,576			294,997		1,274,573
	Goodwill	294,367			28,961			323,328			294,367			28,961		323,328
		$	2,022,817		$	722,483		$	2,745,300		$	1,854,849		$	628,623	$	2,483,472
	Other unallocated assets (primarily cash, other assets, and equity method investments)							396,205								368,160
	Total assets							$	3,141,505							$	2,851,632
Acquisition of Investment in Films and Television Programs by Segment	The following table sets forth acquisition of investment in films and television programs as broken down by segment for the three and nine months ended December 31, 2014 and 2013:
		Three Months Ended						Nine Months Ended
		December 31,						December 31,
		2014			2013			2014			2013
		(Amounts in thousands)
	Acquisition of investment in films and television programs
	Motion Pictures	$	89,041		$	212,598		$	517,385		$	432,208
	Television Production	87,409			142,049			298,084			260,735
		$	176,450		$	354,647		$	815,469		$	692,943

Consolidating_Financial_Inform1

Consolidating Financial Information - Convertible Senior Subordinated Notes (Tables) (Convertible Senior Subordinated Notes [Member])	9 Months Ended
	Dec. 31, 2014
Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Consolidated Financial Information - Balance Sheet
		As of
		December 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	BALANCE SHEET
	Assets
	Cash and cash equivalents	$	839		$	15,501		$	12,546		$	—		$	28,886
	Restricted cash	—			7,508			—			—			7,508
	Accounts receivable, net	741			5,581			968,257			—			974,579
	Investment in films and television programs, net	—			6,394			1,440,999			—			1,447,393
	Property and equipment, net	—			20,685			1,745			—			22,430
	Equity method investments	—			5,947			205,800			(67		)	211,680
	Goodwill	10,172			—			313,156			—			323,328
	Other assets	3,636			65,305			8,467			(6,036		)	71,372
	Deferred tax assets	6,766			38,974			8,589			—			54,329
	Subsidiary investments and advances	1,273,816			1,277,306			2,055,224			(4,606,346		)	—
		$	1,295,970		$	1,443,201		$	5,014,783		$	(4,612,449	)	$	3,141,505
	Liabilities and Shareholders’ Equity (Deficiency)
	Senior revolving credit facility	$	160,500		$	—		$	—		$	—		$	160,500
	5.25% Senior Notes	225,000			—			—			—			225,000
	Term Loan	223,021			—			—			—			223,021
	Accounts payable and accrued liabilities	19,453			69,295			182,353			—			271,101
	Participations and residuals	—			3,417			459,676			—			463,093
	Film obligations and production loans	—			—			737,565			—			737,565
	Convertible senior subordinated notes	—			113,271			—			—			113,271
	Deferred revenue	—			8,813			271,145			—			279,958
	Intercompany payable	—			1,414,020			1,991,164			(3,405,184		)	—
	Shareholders’ equity (deficiency)	667,996			(165,615		)	1,372,880			(1,207,265		)	667,996
		$	1,295,970		$	1,443,201		$	5,014,783		$	(4,612,449	)	$	3,141,505
		As of
		March 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	BALANCE SHEET
	Assets
	Cash and cash equivalents	$	8,128		$	5,999		$	11,565		$	—		$	25,692
	Restricted cash	—			8,925			—			—			8,925
	Accounts receivable, net	688			2,514			882,369			—			885,571
	Investment in films and television programs, net	(18		)	6,394			1,266,703			1,494			1,274,573
	Property and equipment, net	—			14,185			367			—			14,552
	Equity method investments	—			3,668			178,273			—			181,941
	Goodwill	10,172			—			313,156			—			323,328
	Other assets	4,113			67,612			5,682			(6,340		)	71,067
	Deferred tax assets	8,417			48,125			9,441			—			65,983
	Subsidiary investments and advances	1,118,356			1,065,274			1,532,070			(3,715,700		)	—
		$	1,149,856		$	1,222,696		$	4,199,626		$	(3,720,546	)	$	2,851,632
	Liabilities and Shareholders’ Equity (Deficiency)
	Senior revolving credit facility	$	97,619		$	—		$	—		$	—		$	97,619
	5.25% Senior Notes	225,000			—			—			—			225,000
	Term Loan	222,753			—			—			—			222,753
	Accounts payable and accrued liabilities	19,946			73,045			239,466			—			332,457
	Participations and residuals	—			3,417			465,973			—			469,390
	Film obligations and production loans	—			—			499,787			—			499,787
	Convertible senior subordinated notes	—			131,788			—			—			131,788
	Deferred revenue	—			11,689			276,611			—			288,300
	Intercompany payable	—			1,232,310			1,480,273			(2,712,583		)	—
	Shareholders’ equity (deficiency)	584,538			(229,553		)	1,237,516			(1,007,963		)	584,538
		$	1,149,856		$	1,222,696		$	4,199,626		$	(3,720,546	)	$	2,851,632
Consolidated Financial Information - Statement of Income
		Nine Months Ended
		December 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
					(Amounts in thousands)
	STATEMENT OF INCOME
	Revenues	$	—		$	21,565		$	1,732,520		$	(527	)	$	1,753,558
	EXPENSES:
	Direct operating	2			3,243			942,595			—			945,840
	Distribution and marketing	—			1,575			420,062			—			421,637
	General and administration	2,383			115,942			69,010			(360		)	186,975
	Depreciation and amortization	—			2,721			1,964			—			4,685
	Total expenses	2,385			123,481			1,433,631			(360		)	1,559,137
	OPERATING INCOME (LOSS)	(2,385		)	(101,916		)	298,889			(167		)	194,421
	Other expenses (income):
	Interest expense	25,919			138,139			96,941			(221,405		)	39,594
	Interest and other income	(126,019		)	(2,766		)	(94,457		)	221,054			(2,188		)
	Loss on extinguishment of debt	—			1,276			—			—			1,276
	Total other expenses (income)	(100,100		)	136,649			2,484			(351		)	38,682
	INCOME (LOSS) BEFORE EQUITY INTERESTS AND INCOME TAXES	97,715			(238,565		)	296,405			184			155,739
	Equity interests income (loss)	66,045			317,176			37,224			(383,092		)	37,353
	INCOME (LOSS) BEFORE INCOME TAXES	163,760			78,611			333,629			(382,908		)	193,092
	Income tax provision (benefit)	1,533			12,566			52,982			(36,216		)	30,865
	NET INCOME (LOSS)	162,227			66,045			280,647			(346,692		)	162,227
	Foreign currency translation adjustments	(3,473		)	(4,383		)	(1,301		)	4,991			(4,166		)
	Net unrealized gain on foreign exchange contracts, net of tax	—			—			693			—			693
	COMPREHENSIVE INCOME (LOSS)	$	158,754		$	61,662		$	280,039		$	(341,701	)	$	158,754
		Nine Months Ended
		December 31, 2013
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	STATEMENT OF INCOME
	Revenues	$	6,748		$	20,989		$	1,889,642		$	(8,983	)	$	1,908,396
	EXPENSES:
	Direct operating	(254		)	(2,933		)	968,943			—			965,756
	Distribution and marketing	2			2,490			548,005			—			550,497
	General and administration	1,344			124,084			61,093			(401		)	186,120
	Depreciation and amortization	—			1,608			3,158			—			4,766
	Total expenses	1,092			125,249			1,581,199			(401		)	1,707,139
	OPERATING INCOME (LOSS)	5,656			(104,260		)	308,443			(8,582		)	201,257
	Other expenses (income):
	Interest expense	12,496			70,840			20,036			(50,812		)	52,560
	Interest and other income	(33,592		)	(4,838		)	(17,132		)	50,812			(4,750		)
	Loss on extinguishment of debt	2,600			34,053			—			—			36,653
	Total other expenses (income)	(18,496		)	100,055			2,904			—			84,463
	INCOME (LOSS) BEFORE EQUITY INTERESTS AND INCOME TAXES	24,152			(204,315		)	305,539			(8,582		)	116,794
	Equity interests income (loss)	74,296			298,123			18,328			(377,589		)	13,158
	INCOME (LOSS) BEFORE INCOME TAXES	98,448			93,808			323,867			(386,171		)	129,952
	Income tax provision (benefit)	(4,437		)	19,512			67,244			(55,252		)	27,067
	NET INCOME (LOSS)	102,885			74,296			256,623			(330,919		)	102,885
	Foreign currency translation adjustments	3,334			(59		)	26,082			(25,253		)	4,104
	Net unrealized loss on foreign exchange contracts, net of tax	—			—			(770		)	—			(770		)
	COMPREHENSIVE INCOME (LOSS)	$	106,219		$	74,237		$	281,935		$	(356,172	)	$	106,219
Consolidated Financial Information - Statement of Cash Flows
		Nine Months Ended
		December 31, 2014
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	STATEMENT OF CASH FLOWS
	NET CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES	$	93,761		$	16,210		$	(273,012	)	$	—		$	(163,041	)
	INVESTING ACTIVITIES:
	Proceeds from the sale of equity method investees	—			—			14,575			—			14,575
	Investment in equity method investees	—			(2,150		)	(12,600		)	—			(14,750		)
	Other investments	—			(2,000		)	—			—			(2,000		)
	Purchases of property and equipment	—			(9,309		)	(1,984		)	—			(11,293		)
	NET CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES	—			(13,459		)	(9		)	—			(13,468		)
	FINANCING ACTIVITIES:
	Senior revolving credit facility - borrowings	681,500			—			—			—			681,500
	Senior revolving credit facility - repayments	(618,619		)	—			—			—			(618,619		)
	Convertible senior subordinated notes - repurchases	—			(16		)	—			—			(16		)
	Production loans - borrowings	—			—			533,781			—			533,781
	Production loans - repayments	—			—			(261,868		)	—			(261,868		)
	Repurchase of common shares	(129,859		)	—			—			—			(129,859		)
	Dividends paid	(23,536		)	—			—			—			(23,536		)
	Excess tax benefits on equity-based compensation awards	—			6,767			—			—			6,767
	Exercise of stock options	4,404			—			—			—			4,404
	Tax withholding required on equity awards	(14,939		)	—			—			—			(14,939		)
	NET CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES	(101,049		)	6,751			271,913			—			177,615
	NET CHANGE IN CASH AND CASH EQUIVALENTS	(7,288		)	9,502			(1,108		)	—			1,106
	FOREIGN EXCHANGE EFFECTS ON CASH	(1		)	—			2,089			—			2,088
	CASH AND CASH EQUIVALENTS — BEGINNING OF PERIOD	8,128			5,999			11,565			—			25,692
	CASH AND CASH EQUIVALENTS — END OF PERIOD	$	839		$	15,501		$	12,546		$	—		$	28,886
		Nine Months Ended
		December 31, 2013
		Lions Gate			Lions Gate			Non-guarantor			Consolidating			Lions Gate
		Entertainment			Entertainment			Subsidiaries			Adjustments			Consolidated
		Corp.			Inc.
		(Amounts in thousands)
	STATEMENT OF CASH FLOWS
	NET CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES	$	(630,884	)	$	761,836		$	14,882		$	—		$	145,834
	INVESTING ACTIVITIES:
	Proceeds from the sale of equity method investees	—			—			9,000			—			9,000
	Investment in equity method investees	—			(750		)	(16,500		)	—			(17,250		)
	Distributions from equity method investee in excess of earnings	—			—			4,169			—			4,169
	Repayment of loans receivable	—			—			4,275			—			4,275
	Purchases of property and equipment	—			(4,276		)	(1,840		)	—			(6,116		)
	NET CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES	—			(5,026		)	(896		)	—			(5,922		)
	FINANCING ACTIVITIES:
	Senior revolving credit facility - borrowings	319,119			463,100			—			—			782,219
	Senior revolving credit facility - repayments	(125,000		)	(801,574		)	—			—			(926,574		)
	5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860	440,640			—			—			—			440,640
	10.25% Senior Notes - repurchases and redemptions	—			(470,584		)	—			—			(470,584		)
	Convertible senior subordinated notes - borrowings	—			60,000			—			—			60,000
	Production loans - borrowings	—			—			359,582			—			359,582
	Production loans - repayments	—			—			(301,385		)	—			(301,385		)
	Pennsylvania Regional Center credit facility - repayments	—			—			(65,000		)	—			(65,000		)
	Exercise of stock options	10,869			—			—			—			10,869
	Tax withholding required on equity awards	(14,376		)	—			—			—			(14,376		)
	NET CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES	631,252			(749,058		)	(6,803		)	—			(124,609		)
	NET CHANGE IN CASH AND CASH EQUIVALENTS	368			7,752			7,183			—			15,303
	FOREIGN EXCHANGE EFFECTS ON CASH	(210		)	—			(2,054		)	—			(2,264		)
	CASH AND CASH EQUIVALENTS — BEGINNING OF PERIOD	592			36,834			24,937			—			62,363
	CASH AND CASH EQUIVALENTS — END OF PERIOD	$	750		$	44,586		$	30,066		$	—		$	75,402

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Outstanding Forward Foreign Exchange Contracts	As of December 31, 2014, the Company had the following outstanding forward foreign exchange contracts (all outstanding contracts have maturities of less than 23 months from December 31, 2014):
	31-Dec-14
	Foreign Currency	Foreign Currency Amount			US Dollar Amount		Weighted Average Exchange Rate Per $1 USD
		(Amounts in millions)			(Amounts in millions)
	British Pound Sterling		£19.6	in exchange for		$31.60	£0.62
	Australian Dollar		A$31.9	in exchange for		$28.70	A$1.11
	Canadian Dollar		C$0.6	in exchange for		$0.60	C$1.09

Supplementary_Cash_Flow_Statem1

Supplementary Cash Flow Statement Information (Tables)	9 Months Ended
	Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]
Supplemental Schedule of Non-Cash Investing and Financing Activities
		Nine Months Ended
		December 31,
		2014		2013
		(Amounts in thousands)
	Non-cash financing activities:
	Accrued dividends (see Note 10)	$	9,817	$	6,900
	Accrued share repurchases	$	2,106	$	—
	Conversions of convertible senior subordinated notes (see Note 5)	$	24,145	$	3,150

Investment_In_Films_And_Televi2

Investment In Films And Television Programs (Narrative) (Details)	9 Months Ended
	Dec. 31, 2014
Investment In Films And Television Programs [Abstract]
Percentage of unamortized film costs, one year	47.00%
Percentage of unamortized film costs, three years	81.00%

Investment_In_Films_And_Televi3

Investment In Films And Television Programs (Schedule of Investment In Films And Television Programs) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Investment in Films and Television Programs [Line Items]
Acquired libraries, net of accumulated amortization	$11,153	$14,329
Total investment in film and television programs	1,447,393	1,274,573
Motion Pictures Segment - Theatrical and Non-Theatrical Films [Member]
Investment in Films and Television Programs [Line Items]
Released, net of accumulated amortization	454,576	509,831
Acquired libraries, net of accumulated amortization	11,153	14,329
Completed and not released	124,674	50,785
In progress	473,052	351,047
In development	30,765	22,336
Product inventory	22,342	31,248
Total investment in film and television programs	1,116,562	979,576
Television Production Segment - Direct-to-Television Programs [Member]
Investment in Films and Television Programs [Line Items]
Released, net of accumulated amortization	227,513	212,929
In progress	96,441	76,459
In development	6,877	5,609
Total investment in film and television programs	$330,831	$294,997

Investment_In_Films_And_Televi4

Investment In Films And Television Programs (Schedule Of Acquired Libraries) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Total acquired libraries	$11,153	$14,329
Artisan Entertainment [Member]
Total amortization period (in years)	20 years
Remaining amortization period (in years)	9 years 0 months
Total acquired libraries	6,702	10,236
Summit Entertainment [Member]
Total amortization period (in years)	20 years
Remaining amortization period (in years)	17 years 0 months
Total acquired libraries	$4,451	$4,093
Maximum [Member]
Total amortization period (in years)	20 years

Equity_Method_Investments_Narr

Equity Method Investments (Narrative) (Details) (USD $)	9 Months Ended		3 Months Ended		30 Months Ended	81 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2010	Dec. 31, 2014	Jun. 30, 2014	31-May-13
Schedule of Equity Method Investments [Line Items]
Investment in equity method investees	$14,750,000	$17,250,000
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Investment in equity method investees					80,400,000
Equity method investment distributions received	7,800,000	14,000,000	0	0		28,000,000
Equity method investment, ownership percentage	31.15%	31.15%	31.15%	31.15%		31.15%
POP [Member]
Schedule of Equity Method Investments [Line Items]
Investment in equity method investees	10,500,000		0
Equity method investment, ownership percentage	50.00%	50.00%	50.00%	50.00%		50.00%
TVGuide.com [Member]
Schedule of Equity Method Investments [Line Items]
Percentage sold of equity interest								50.00%
Defy Media [Member]
Schedule of Equity Method Investments [Line Items]
Effective economic interest in Defy Media	16.00%		16.00%			16.00%
Roadside Attractions [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	43.00%		43.00%			43.00%
Pantelion Films [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%		49.00%			49.00%
MovieFriends [Member]
Schedule of Equity Method Investments [Line Items]
Investment in equity method investees							2,200,000
Equity method investment, ownership percentage	12.30%		12.30%			12.30%
Tribeca Short List [Member]
Schedule of Equity Method Investments [Line Items]
Investment in equity method investees			$2,100,000
Equity method investment, ownership percentage	75.00%		75.00%			75.00%
Redeemable Preferred Stock [Member] | POP [Member]
Schedule of Equity Method Investments [Line Items]
Rate of dividend on preferred stock	10.00%
Total accretion period to redemption date of mandatorily redeemable preferred stock units and dividend	10 years

Equity_Method_Investments_Carr

Equity Method Investments (Carrying Amount Of Equity Method Investments) (Details) (USD $)	Dec. 31, 2014		Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Equity Method Investments [Line Items]
Equity method investments	$211,680		$181,941
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	31.15%				31.15%
Equity method investments	98,416		78,758
POP [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%				50.00%
Equity method investments	92,134		86,298
Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments	$21,130	[1]	$16,885	[1]
[1]	The Company records its share of the net income or loss of Other Equity Method Investments on a one quarter lag and, accordingly, during the three and nine months ended December 31, 2014 and 2013, the Company recorded its share of the income or loss generated by these entities for the three and nine months ended September 30, 2014 and 2013, respectively. Equity interest income from Other Equity Method Investments of $14.6 million for the nine months ended December 31, 2014 includes a gain on the sale of the Company's investment in FEARnet of $11.4 million. The Company sold all of its 34.5% interest in FEARnet on April 14, 2014, for a sales price of approximately $14.6 million. As a result of this transaction, the Company's equity interest in FEARnet was reduced to zero as of June 30, 2014.

Equity_Method_Investments_Equi

Equity Method Investments (Equity Method Investee, Income (Loss)) (Details) (USD $)	3 Months Ended				9 Months Ended				0 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013		Apr. 14, 2014	Mar. 31, 2014		Jun. 30, 2014
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	$10,898,000		($1,321,000)		$37,353,000		$13,158,000
Equity method investments, carrying amount	211,680,000				211,680,000					181,941,000
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	11,214,000		5,614,000		27,446,000		21,236,000
Equity method investment, ownership percentage	31.15%		31.15%		31.15%		31.15%
Equity method investments, carrying amount	98,416,000				98,416,000					78,758,000
POP [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	-1,115,000		-5,223,000		-4,663,000		-3,166,000
Equity method investment, ownership percentage	50.00%		50.00%		50.00%		50.00%
Gain on sale of equity method investee	0	[1]	0	[1]	0	[1]	3,960,000	[1]
Equity method investments, carrying amount	92,134,000				92,134,000					86,298,000
Other Equity Method Investments [Member]
Schedule of Equity Method Investments [Line Items]
Equity interests income (loss)	799,000	[2]	-1,712,000	[2]	14,570,000	[2]	-4,912,000	[2]
Equity method investments, carrying amount	21,130,000	[2]			21,130,000	[2]				16,885,000	[2]
FEARnet [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage									34.50%
Equity method investment, sales price									14,600,000
Gain on sale of equity method investee					11,400,000
Equity method investments, carrying amount												$0
[1]	Represents the gain on the May 31, 2013 sale of the Company's 50% interest in TVGuide.com. As a result of the sale, TVGuide.com is considered a discontinued operation by POP, and accordingly, the revenues and expenses of TVGuide.com prior to the transaction for all periods presented, are reflected net within the discontinued operations section of the summarized statement of operations for POP.
[2]	The Company records its share of the net income or loss of Other Equity Method Investments on a one quarter lag and, accordingly, during the three and nine months ended December 31, 2014 and 2013, the Company recorded its share of the income or loss generated by these entities for the three and nine months ended September 30, 2014 and 2013, respectively. Equity interest income from Other Equity Method Investments of $14.6 million for the nine months ended December 31, 2014 includes a gain on the sale of the Company's investment in FEARnet of $11.4 million. The Company sold all of its 34.5% interest in FEARnet on April 14, 2014, for a sales price of approximately $14.6 million. As a result of this transaction, the Company's equity interest in FEARnet was reduced to zero as of June 30, 2014.

Equity_Method_Investments_Summ

Equity Method Investments (Summarized Balance Sheet) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
EPIX [Member]
Equity Method Investment, Summarized Financial Information [Abstract]
Current assets	$221,417	$184,471
Non-current assets	267,544	247,231
Current liabilities	117,394	126,217
Non-current liabilities	9,515	9,459
POP [Member]
Equity Method Investment, Summarized Financial Information [Abstract]
Current assets	31,594	27,150
Non-current assets	192,430	196,011
Current liabilities	29,583	30,653
Non-current liabilities	6,970	12,334
Redeemable preferred stock	$377,062	$325,204

Equity_Method_Investments_Summ1

Equity Method Investments (Summarized Statement Of Operations) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Reconciliation of net income (loss) reported by investee to equity interest income (loss):
Total equity interest income (loss) recorded	$10,898		($1,321)		$37,353		$13,158
EPIX [Member]
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	101,124		89,768		288,424		261,998
Expenses:
Operating expenses	59,224		60,973		178,690		182,259
Selling, marketing, general and administrative expenses	5,863		5,791		17,503		17,054
Operating income (loss)	36,037		23,004		92,231		62,685
Interest and other expense	-399		-163		-1,130		-1
Net income (loss)	35,638		22,841		91,101		62,684
Reconciliation of net income (loss) reported by investee to equity interest income (loss):
Net income (loss)	35,638		22,841		91,101		62,684
Ownership interest in investee	31.15%		31.15%		31.15%		31.15%
The Company's share of net income (loss)	11,101		7,115		28,378		19,526
Eliminations of the Company's share of profits on licensing sales to investee	-1,935	[1]	-3,606	[1]	-7,007	[1]	-9,226	[1]
Realization of the Company's share of profits on licensing sales to investee	2,048	[2]	2,105	[2]	6,075	[2]	10,936	[2]
Total equity interest income (loss) recorded	11,214		5,614		27,446		21,236
POP [Member]
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Revenues	20,507		20,058		59,073		55,023
Expenses:
Cost of services	8,645		13,874		26,938		27,877
Selling, marketing, general and administrative expenses	11,934		12,446		34,527		32,923
Depreciation and amortization	1,928		2,040		5,866		6,034
Operating income (loss)	-2,000		-8,302		-8,258		-11,811
Other expense (income)	6		160		391		-1,230
Interest expense, net	160		297		551		979
Accretion of redeemable preferred stock units	12,461	[3]	10,347	[3]	35,361	[3]	29,498	[3]
Total interest expense, net	12,627		10,804		36,303		29,247
Loss from continuing operations	-14,627		-19,106		-44,561		-41,058
Loss from discontinued operations	0		-1,685		0		-2,799
Net income (loss)	-14,627		-20,791		-44,561		-43,857
Reconciliation of net income (loss) reported by investee to equity interest income (loss):
Net income (loss)	-14,627		-20,791		-44,561		-43,857
Ownership interest in investee	50.00%		50.00%		50.00%		50.00%
The Company's share of net income (loss)	-7,314		-10,396		-22,281		-21,929
Gain on sale of the Company's 50% share of TVGuide.com	0	[4]	0	[4]	0	[4]	3,960	[4]
Accretion of dividend and interest income on redeemable preferred stock units	6,231	[3]	5,173	[3]	17,681	[3]	14,749	[3]
Eliminations of the Company's share of profits on licensing sales to investee	0		0		-367		0
Realization of the Company's share of profits on licensing sales to investee	-32		0		304		54
Total equity interest income (loss) recorded	($1,115)		($5,223)		($4,663)		($3,166)
[1]	Represents the elimination of the gross profit recognized by the Company on licensing sales to EPIX in proportion to the Company's ownership interest in EPIX. The table below sets forth the revenues and gross profits recognized by the Company and the calculation of the profit eliminated for the three and nine months ended December 31, 2014 and 2013: (Amounts in thousands) Three months ended December 31, 2014 and 2013: Revenue recognized on licensing sales to EPIX - $15,349 and $24,740, respectively; Gross profit on licensing sales to EPIX - $6,213 and $11,576, respectively; Ownership interest in EPIX - 31.15% and 31.15%, respectively; Elimination of the Company's share of profits on licensing sales to EPIX - $1,935 and $3,606, respectively. Nine months ended December 31, 2014 and 2013: Revenue recognized on licensing sales to EPIX - $41,281 and $47,871, respectively; Gross profit on licensing sales to EPIX - $22,493 and $29,619, respectively; Ownership interest in EPIX - 31.15% and 31.15%, respectively; Elimination of the Company's share of profits on licensing sales to EPIX - $7,007 and $9,226, respectively.
[2]	Represents the realization of a portion of the profits previously eliminated. This profit remains eliminated until realized by EPIX. EPIX initially records the license fee for the title as inventory on its balance sheet and amortizes the inventory over the license period. Accordingly, the profit is realized as the inventory on EPIX's books is amortized.
[3]	Accretion of mandatorily redeemable preferred stock units represents POP's 10% dividend and the amortization of discount on its mandatorily redeemable preferred stock units held by the Company and the other interest holder. The Company recorded its share of this expense as income from the accretion of dividend and discount on mandatorily redeemable preferred stock units within equity interest income (loss).
[4]	Represents the gain on the May 31, 2013 sale of the Company's 50% interest in TVGuide.com. As a result of the sale, TVGuide.com is considered a discontinued operation by POP, and accordingly, the revenues and expenses of TVGuide.com prior to the transaction for all periods presented, are reflected net within the discontinued operations section of the summarized statement of operations for POP.

Equity_Method_Investments_Inte

Equity Method Investments (Intercompany Revenue and Gross Profit and Calculation of Profit Eliminated) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]
Revenue recognized on licensing sales to investee	$751,299		$839,939		$1,753,558		$1,908,396
EPIX [Member]
Schedule of Equity Method Investments [Line Items]
Revenue recognized on licensing sales to investee	15,349		24,740		41,281		47,871
Gross profit on licensing sales to investee	6,213		11,576		22,493		29,619
Ownership interest in investee	31.15%		31.15%		31.15%		31.15%
Elimination of the Company's share of profit on licensing sales to investee	$1,935	[1]	$3,606	[1]	$7,007	[1]	$9,226	[1]
[1]	Represents the elimination of the gross profit recognized by the Company on licensing sales to EPIX in proportion to the Company's ownership interest in EPIX. The table below sets forth the revenues and gross profits recognized by the Company and the calculation of the profit eliminated for the three and nine months ended December 31, 2014 and 2013: (Amounts in thousands) Three months ended December 31, 2014 and 2013: Revenue recognized on licensing sales to EPIX - $15,349 and $24,740, respectively; Gross profit on licensing sales to EPIX - $6,213 and $11,576, respectively; Ownership interest in EPIX - 31.15% and 31.15%, respectively; Elimination of the Company's share of profits on licensing sales to EPIX - $1,935 and $3,606, respectively. Nine months ended December 31, 2014 and 2013: Revenue recognized on licensing sales to EPIX - $41,281 and $47,871, respectively; Gross profit on licensing sales to EPIX - $22,493 and $29,619, respectively; Ownership interest in EPIX - 31.15% and 31.15%, respectively; Elimination of the Company's share of profits on licensing sales to EPIX - $7,007 and $9,226, respectively.

Other_Assets_Composition_Of_Ot

Other Assets (Composition Of Other Assets) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Other Assets, Unclassified [Abstract]
Deferred financing costs, net of accumulated amortization	$29,084	$34,722
Prepaid expenses and other	40,648	33,347
Finite-lived intangible assets	1,640	2,998
Total other assets	$71,372	$71,067

Corporate_Debt_Narrative_Senio

Corporate Debt (Narrative - Senior Revolving Credit Facility) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Senior Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Senior revolving credit facility, available amount	639.5	$702.30
Senior revolving credit facility, maximum borrowing capacity	800
Effective interest rate	2.67%	2.65%
Change in control, trigger percentage	50.00%
Letter of Credit [Member]
Line of Credit Facility [Abstract]
Letters of credit outstanding, amount	0	$0.10
Minimum [Member] | Senior Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Senior revolving credit facility, commitment fee annual percentage	0.38%
Maximum [Member] | Senior Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Senior revolving credit facility, commitment fee annual percentage	0.50%
Base Rate [Member] | Senior Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Basis spread on variable interest rate	1.50%
LIBOR [Member] | Senior Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Basis spread on variable interest rate	2.50%

Corporate_Debt_Narrative_525_S

Corporate Debt (Narrative - 5.25% Senior Notes and Term Loan) (Details) (USD $)	9 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Jul. 31, 2013
Debt Instrument [Line Items]
Carrying value of debt outstanding	$721,792,000		$677,160,000
Unamortized discount	6,732,000
5.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Debt Instrument [Line Items]
Coupon rate	5.25%	5.25%		5.25%
Principal amount of notes				225,000,000
Carrying value of debt outstanding	225,000,000		225,000,000
Term Loan [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Term Loan, term	7 years
Carrying value of debt outstanding	223,021,000		222,753,000	222,500,000
Unamortized discount	1,979,000		2,247,000	2,500,000
Effective interest rate	5.00%		5.00%
Term Loan [Member] | Base Rate [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	3.00%
Interest rate floor	2.00%
Term Loan [Member] | LIBOR [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Basis spread on variable interest rate	4.00%
Interest rate floor	1.00%
5.25% Senior Notes and Term Loan [Member] | Senior Secured Second-Priority Notes and Term Loan [Member]
Debt Instrument [Line Items]
Principal amount of notes				450,000,000
Transaction costs capitalized as deferred financing costs		4,200,000
Transaction costs expensed as early extinguishment of debt		$2,600,000
10.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Debt Instrument [Line Items]
Coupon rate	10.25%	10.25%		10.25%
Debt instrument redemption price percentage	100.00%

Corporate_Debt_Narrative_1025_

Corporate Debt (Narrative - 10.25% Senior Notes) (Details) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Jul. 31, 2013	Jun. 30, 2013	Jun. 30, 2013	Sep. 30, 2013
Debt Instrument [Line Items]
Amounts paid for repurchases			$0	$470,584,000
Loss on extinguishment of debt	690,000	0	1,276,000	36,653,000
Senior Secured Second-Priority Notes [Member] | 10.25% Senior Notes [Member]
Debt Instrument [Line Items]
Amounts paid for repurchases						4,300,000
Principal amount of notes repurchased or redeemed					432,000,000	4,000,000
Carrying value of notes extinguished						4,000,000
Loss on extinguishment of debt							500,000
Write-off of deferred debt financing costs							200,000
Coupon rate	10.25%	10.25%	10.25%	10.25%	10.25%
Premium and interest paid for early redemption of 10.25% Senior Notes					34,300,000
Deferred financing costs and unamortized discount related to redeemed notes					19,800,000
Debt instrument redemption price percentage			100.00%
Senior Secured Second-Priority Notes [Member] | 5.25% Senior Notes [Member]
Debt Instrument [Line Items]
Coupon rate	5.25%	5.25%	5.25%	5.25%	5.25%
Principal amount of notes					225,000,000
Term Loan [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Term Loan, term			7 years
Senior Secured Second-Priority Notes and Term Loan [Member] | 10.25% Senior Notes and New Issuances [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt								35,900,000
Senior Secured Second-Priority Notes and Term Loan [Member] | 5.25% Senior Notes and Term Loan [Member]
Debt Instrument [Line Items]
Principal amount of notes					$450,000,000

Corporate_Debt_Narrative_Conve

Corporate Debt (Narrative - Convertible Senior Subordinated Notes) (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Apr. 30, 2009	Jan. 31, 2012	Apr. 30, 2013
Debt Instrument [Line Items]
Principal amount of notes converted into common shares			$24,145,000	$3,150,000
Loss on extinguishment of debt	690,000	0	1,276,000	36,653,000
Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt			1,276,000	36,653,000
Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Debt Instrument [Line Items]
Coupon rate	3.63%		3.63%
Principal amount of notes					66,600,000
Equity component					16,200,000
Effective interest rate of liability component	17.26%		17.26%
Conversion price per share	$8.17		$8.17
Convertible Senior Subordinated Notes [Member] | January 2012 Notes [Member]
Debt Instrument [Line Items]
Coupon rate	4.00%		4.00%
Principal amount of notes						45,000,000
Equity component						10,100,000
Effective interest rate of liability component	9.56%		9.56%
Conversion price per share	$10.40		$10.40
Convertible Senior Subordinated Notes [Member] | April 2013 Notes [Member]
Debt Instrument [Line Items]
Coupon rate	1.25%		1.25%
Principal amount of notes							60,000,000
Conversion price per share	$29.71		$29.71
Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Debt Instrument [Line Items]
Coupon rate	2.94%		2.94%
April 2009 3.625% Notes, Redemption, On or after March 15, 2015 [Member] | Issuer [Member] | Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage			100.00%
On March 15, 2015, March 15, 2018, March 15, 2023 Or Upon A Designated Event [Member] | Holder [Member] | Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage			100.00%
April 2009 Notes Conversion [Member] | Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Debt Instrument [Line Items]
Principal amount of notes converted into common shares			24,000,000
Conversion price per share	$8.21		$8.21
Common shares issued for convertible senior subordinated notes			2,929,899
Loss on extinguishment of debt	700,000		1,300,000
October 2004 Notes Conversion [Member] | Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Debt Instrument [Line Items]
Principal amount of notes converted into common shares			$100,000
Conversion price per share	$11.46		$11.46
Common shares issued for convertible senior subordinated notes			8,634

Corporate_Debt_Carrying_Values

Corporate Debt (Carrying Values of Corporate Debt) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Jul. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Senior revolving credit facility	$160,500	$97,619
Corporate debt	721,792	677,160
Unamortized discount	6,732
Senior Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Senior revolving credit facility	160,500	97,619
Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Senior revolving credit facility	160,500	97,619
Corporate debt	113,271	131,788
Unamortized discount	4,753	10,397
5.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Debt Instrument [Line Items]
Corporate debt	225,000	225,000
Coupon rate	5.25%		5.25%	5.25%
Term Loan [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Corporate debt	223,021	222,753		222,500
Unamortized discount	$1,979	$2,247		2,500

Corporate_Debt_Future_Annual_C

Corporate Debt (Future Annual Contractual Principal Payment Commitments) (Details) (USD $)	Dec. 31, 2014		Mar. 31, 2014	Dec. 31, 2013	Jul. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	$16,174
Year Ended March 31, 2016	0
Year Ended March 31, 2017	41,850
Year Ended March 31, 2018	160,500
Year Ended March 31, 2019	285,000
Thereafter	225,000
Total	728,524
Less aggregate unamortized discount	-6,732
Carrying value of debt outstanding	721,792		677,160
Senior Revolving Credit Facility [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	0
Year Ended March 31, 2016	0
Year Ended March 31, 2017	0
Year Ended March 31, 2018	160,500
Year Ended March 31, 2019	0
Thereafter	0
Total	160,500
Convertible Senior Subordinated Notes [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Total	118,024		142,185
Less aggregate unamortized discount	-4,753		-10,397
Carrying value of debt outstanding	113,271		131,788
5.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	0
Year Ended March 31, 2016	0
Year Ended March 31, 2017	0
Year Ended March 31, 2018	0
Year Ended March 31, 2019	225,000
Thereafter	0
Total	225,000
Carrying value of debt outstanding	225,000		225,000
Coupon rate	5.25%			5.25%	5.25%
Term Loan [Member] | Term Loan [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	0
Year Ended March 31, 2016	0
Year Ended March 31, 2017	0
Year Ended March 31, 2018	0
Year Ended March 31, 2019	0
Thereafter	225,000
Total	225,000
Less aggregate unamortized discount	-1,979		-2,247		-2,500
Carrying value of debt outstanding	223,021		222,753		222,500
April 2009 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	16,174	[1]
Year Ended March 31, 2016	0	[1]
Year Ended March 31, 2017	0	[1]
Year Ended March 31, 2018	0	[1]
Year Ended March 31, 2019	0	[1]
Thereafter	0	[1]
Total	16,174		40,220
Less aggregate unamortized discount	-370		-4,605
Carrying value of debt outstanding	15,804		35,615
Conversion price per share	$8.17
Coupon rate	3.63%
January 2012 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	0	[1]
Year Ended March 31, 2016	0	[1]
Year Ended March 31, 2017	41,850	[1]
Year Ended March 31, 2018	0	[1]
Year Ended March 31, 2019	0	[1]
Thereafter	0	[1]
Total	41,850		41,850
Less aggregate unamortized discount	-4,383		-5,792
Carrying value of debt outstanding	37,467		36,058
Conversion price per share	$10.40
Coupon rate	4.00%
April 2013 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Long-term Debt, Fiscal Year Maturity [Abstract]
Year Ended March 31, 2015	0	[1]
Year Ended March 31, 2016	0	[1]
Year Ended March 31, 2017	0	[1]
Year Ended March 31, 2018	0	[1]
Year Ended March 31, 2019	60,000	[1]
Thereafter	0	[1]
Total	60,000		60,000
Less aggregate unamortized discount	0		0
Carrying value of debt outstanding	$60,000		$60,000
Conversion price per share	$29.71
Coupon rate	1.25%
[1]	The future repayment dates of the convertible senior subordinated notes represent the next redemption date by holders for each series of notes respectively, as described below.

Corporate_Debt_Convertible_Sen

Corporate Debt (Convertible Senior Subordinated Notes Outstanding and Certain Key Terms) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, except Per Share data, unless otherwise specified
Debt Instrument [Line Items]
Principal amount of debt outstanding	$728,524
Unamortized Discount	-6,732
Net carrying amount	721,792	677,160
Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding	118,024	142,185
Unamortized Discount	-4,753	-10,397
Net carrying amount	113,271	131,788
October 2004 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding	0	115
Unamortized Discount	0	0
Net carrying amount	0	115
Coupon rate	2.94%
April 2009 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding	16,174	40,220
Unamortized Discount	-370	-4,605
Net carrying amount	15,804	35,615
Coupon rate	3.63%
Conversion price per share	$8.17
January 2012 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding	41,850	41,850
Unamortized Discount	-4,383	-5,792
Net carrying amount	37,467	36,058
Coupon rate	4.00%
Conversion price per share	$10.40
April 2013 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt outstanding	60,000	60,000
Unamortized Discount	0	0
Net carrying amount	$60,000	$60,000
Coupon rate	1.25%
Conversion price per share	$29.71

Corporate_Debt_Interest_Expens

Corporate Debt (Interest Expense) (Details) (Convertible Senior Subordinated Notes [Member], USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Convertible Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Contractual interest coupon	$776	$1,191	$2,705	$3,581
Amortization of discount on liability component and debt issuance costs	1,061	2,195	4,322	6,432
Interest expense, total	$1,837	$3,386	$7,027	$10,013

Participations_and_Residuals_D

Participations and Residuals (Details)	9 Months Ended
	Dec. 31, 2014
Participations And Residuals [abstract]
Percentage of accrued participations and residuals payable within one year	58.00%

Film_Obligations_and_Productio2

Film Obligations and Production Loans (Narrative) (Details) (Production Loans [Member])	9 Months Ended
	Dec. 31, 2014
Production Loans [Member]
Interest rate range, minimum	3.26%
Interest rate range, maximum	3.51%

Film_Obligations_and_Productio3

Film Obligations and Production Loans (Film Obligations And Production Loans) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Film obligations	$46,769	$80,904
Production loans	690,796	418,883
Total film obligations and production loans	$737,565	$499,787

Film_Obligations_and_Productio4

Film Obligations and Production Loans (Future Annual Repayment of Film Obligations And Production Loans) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Future Annual Repayment Of Film Obligations And Production Loans
Three Months Ended March 31, 2015	$110,496
Year Ended March 31, 2016	408,461
Year Ended March 31, 2017	216,095
Year Ended March 31, 2018	2,000
Year Ended March 31, 2019	1,000
Thereafter	0
Total	738,052
Less imputed interest on film obligations	-487
Total film obligations and production loans	737,565	499,787
Film Obligations [Member]
Future Annual Repayment Of Film Obligations And Production Loans
Three Months Ended March 31, 2015	24,612
Year Ended March 31, 2016	16,680
Year Ended March 31, 2017	2,964
Year Ended March 31, 2018	2,000
Year Ended March 31, 2019	1,000
Thereafter	0
Total	47,256
Production Loans [Member]
Future Annual Repayment Of Film Obligations And Production Loans
Three Months Ended March 31, 2015	85,884
Year Ended March 31, 2016	391,781
Year Ended March 31, 2017	213,131
Year Ended March 31, 2018	0
Year Ended March 31, 2019	0
Thereafter	0
Total	$690,796

Fair_Value_Measurements_Carryi

Fair Value Measurements (Carrying Values And Fair Values Of Investment in Mandatorily Redeemable Preferred Stock and Outstanding Debt) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Jul. 31, 2013
In Thousands, unless otherwise specified
Fair Value [Line Items]
Corporate debt	$721,792	$677,160
Production loans	690,796	418,883
Convertible Senior Subordinated Notes [Member]
Fair Value [Line Items]
Corporate debt	113,271	131,788
Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Fair Value [Line Items]
Corporate debt	0	115
Coupon rate	2.94%
Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Fair Value [Line Items]
Corporate debt	15,804	35,615
Coupon rate	3.63%
Convertible Senior Subordinated Notes [Member] | January 2012 Notes [Member]
Fair Value [Line Items]
Corporate debt	37,467	36,058
Coupon rate	4.00%
Convertible Senior Subordinated Notes [Member] | April 2013 Notes [Member]
Fair Value [Line Items]
Corporate debt	60,000	60,000
Coupon rate	1.25%
Senior Secured Second-Priority Notes [Member] | 5.25% Senior Notes [Member]
Fair Value [Line Items]
Corporate debt	225,000	225,000
Coupon rate	5.25%		5.25%	5.25%
Term Loan [Member] | Term Loan [Member]
Fair Value [Line Items]
Corporate debt	223,021	222,753		222,500
Carrying Value [Member]
Fair Value [Line Items]
Investment in POP's Mandatorily Redeemable Preferred Stock Units	92,134	86,298
Corporate debt and production loans	1,252,088	998,424
Carrying Value [Member] | Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Fair Value [Line Items]
Corporate debt	0	115
Carrying Value [Member] | Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Fair Value [Line Items]
Corporate debt	15,804	35,615
Carrying Value [Member] | Convertible Senior Subordinated Notes [Member] | January 2012 Notes [Member]
Fair Value [Line Items]
Corporate debt	37,467	36,058
Carrying Value [Member] | Convertible Senior Subordinated Notes [Member] | April 2013 Notes [Member]
Fair Value [Line Items]
Corporate debt	60,000	60,000
Carrying Value [Member] | Film Obligations and Production Loans [Member] | Production Loans [Member]
Fair Value [Line Items]
Production loans	690,796	418,883
Carrying Value [Member] | Senior Secured Second-Priority Notes [Member] | 5.25% Senior Notes [Member]
Fair Value [Line Items]
Corporate debt	225,000	225,000
Carrying Value [Member] | Term Loan [Member] | Term Loan [Member]
Fair Value [Line Items]
Corporate debt	223,021	222,753
Fair Value [Member] | Fair Value (Level 3) [Member]
Fair Value [Line Items]
Investment in POP's Mandatorily Redeemable Preferred Stock Units	116,938	99,907
Fair Value [Member] | Fair Value (Level 2) [Member]
Fair Value [Line Items]
Corporate debt and production loans	1,256,418	1,001,103
Fair Value [Member] | Fair Value (Level 2) [Member] | Convertible Senior Subordinated Notes [Member] | October 2004 Notes [Member]
Fair Value [Line Items]
Corporate debt	0	111
Fair Value [Member] | Fair Value (Level 2) [Member] | Convertible Senior Subordinated Notes [Member] | April 2009 Notes [Member]
Fair Value [Line Items]
Corporate debt	16,305	40,140
Fair Value [Member] | Fair Value (Level 2) [Member] | Convertible Senior Subordinated Notes [Member] | January 2012 Notes [Member]
Fair Value [Line Items]
Corporate debt	41,435	41,401
Fair Value [Member] | Fair Value (Level 2) [Member] | Convertible Senior Subordinated Notes [Member] | April 2013 Notes [Member]
Fair Value [Line Items]
Corporate debt	51,834	51,411
Fair Value [Member] | Fair Value (Level 2) [Member] | Film Obligations and Production Loans [Member] | Production Loans [Member]
Fair Value [Line Items]
Production loans	690,796	418,883
Fair Value [Member] | Fair Value (Level 2) [Member] | Senior Secured Second-Priority Notes [Member] | 5.25% Senior Notes [Member]
Fair Value [Line Items]
Corporate debt	229,923	223,313
Fair Value [Member] | Fair Value (Level 2) [Member] | Term Loan [Member] | Term Loan [Member]
Fair Value [Line Items]
Corporate debt	$226,125	$225,844

Net_Income_Per_Share_Basic_Det

Net Income Per Share (Basic) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income	$98,185	$88,763	$162,227	$102,885
Denominator:
Weighted average common shares outstanding	139,963	137,946	138,618	137,097
Basic net income per common share	$0.70	$0.64	$1.17	$0.75

Net_Income_Per_Share_Diluted_D

Net Income Per Share (Diluted) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income	$98,185	$88,763	$162,227	$102,885
Interest on convertible notes, net of tax	1,163	2,137	4,456	6,315
Numerator for Diluted Net Income Per Common Share	$99,348	$90,900	$166,683	$109,200
Denominator:
Weighted average common shares outstanding	139,963	137,946	138,618	137,097
Conversion of notes	8,360	13,815	9,995	13,842
Share purchase options	2,943	2,797	2,662	2,619
Restricted share units	447	579	441	639
Adjusted weighted average common shares outstanding	151,713	155,137	151,716	154,197
Diluted net income per common share	$0.65	$0.59	$1.10	$0.71

Net_Income_Per_Share_Antidilut

Net Income Per Share (Anti-dilutive Shares Issuable) (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Anti-dilutive shares issuable [Line Items]
Anti-dilutive shares issuable	3,517	3,198	4,764	2,701
Share Purchase Options [Member]
Anti-dilutive shares issuable [Line Items]
Anti-dilutive shares issuable	3,122	2,630	4,334	2,203
Restricted Share Units (RSUs) [Member]
Anti-dilutive shares issuable [Line Items]
Anti-dilutive shares issuable	97	117	144	52
Contingently Issuable Shares [Member]
Anti-dilutive shares issuable [Line Items]
Anti-dilutive shares issuable	298	451	286	446

Capital_Stock_Narrative_Detail

Capital Stock (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended		9 Months Ended
	Dec. 12, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 17, 2013	Dec. 16, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized common shares		500,000,000		500,000,000		500,000,000
Excess tax benefits on equity-based compensation awards				$6,767,000
Share repurchase plan, authorized amount							300,000,000	150,000,000
Common shares repurchased during period, value				123,626,000
Dividends declared per common share	$0.07	$0.07	$0.05	$0.19	$0.05
Cash dividends payable		9,817,000	6,900,000	9,817,000	6,900,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		57,400,000		57,400,000
Total unrecognized compensation cost, weighted average period for recognition				2 years 1 month 6 days
Restricted Share Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		30,100,000		30,100,000
Total unrecognized compensation cost, weighted average period for recognition				1 year 8 months 12 days
Share Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash-settled SARs exercised				75,000
Cash paid for the exercise of cash-settled SARs				1,700,000
Performance Incentive Plan of 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares available for grant under the share-based compensation arrangement plan		27,600,000		27,600,000
Common Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess tax benefits on equity-based compensation awards				6,767,000	0
Common shares repurchased during period, shares				4,594,594
Common shares repurchased during period, value				123,626,000
Share Repurchase Plan 2013 [Member] | Common Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares repurchased during period, shares				4,594,594
Common shares repurchased during period, value				$123,626,000
Weighted average repurchase price per share				$26.91

Capital_Stock_Common_Shares_Re

Capital Stock (Common Shares Reserved for Future Issuance) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014
In Thousands, except Per Share data, unless otherwise specified
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	29,555	27,415
Stock Options [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	12,104	10,894
Stock options outstanding, average exercise price	22.06	20.83
Restricted Share Units (RSUs) - Unvested [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	1,784	2,139
Share Purchase Options and Restricted Share Units [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	7,643	3,471
October 2004 Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	0	10
Conversion price per share		11.46
April 2009 Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	1,980	4,893
Conversion price per share	8.17	8.22
January 2012 Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	4,024	4,001
Conversion price per share	10.4	10.46
April 2013 Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Shares reserved for future issuance	2,020	2,007
Conversion price per share	29.71	29.89
October 2004 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Coupon rate	2.94%
April 2009 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Conversion price per share	8.17
Coupon rate	3.63%
January 2012 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Conversion price per share	10.4
Coupon rate	4.00%
April 2013 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Common Shares Reserved For Future Issuance [Line Items]
Conversion price per share	29.71
Coupon rate	1.25%

Capital_Stock_ShareBased_Compe

Capital Stock (Share-Based Compensation Expense) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Share-Based Compensation Expense [Line Items]
Share-based compensation expense	$15,132		$12,064		$48,875		$52,199
Impact of accelerated vesting on stock options and restricted share units	0	[1]	0	[1]	1,194	[1]	0	[1]
Total share-based compensation expense	15,132		12,064		50,069		52,199
Tax impact	-5,547	[2]	-4,464	[2]	-18,355	[2]	-19,314	[2]
Reduction in net income	9,585		7,600		31,714		32,885
Stock Options [Member]
Share-Based Compensation Expense [Line Items]
Share-based compensation expense	7,551		5,393		25,560		15,131
Restricted Share Units and Other Share-based Compensation [Member]
Share-Based Compensation Expense [Line Items]
Share-based compensation expense	6,477		6,597		19,515		22,032
Share Appreciation Rights (SARs) [Member]
Share-Based Compensation Expense [Line Items]
Share-based compensation expense	$1,104		$74		$3,800		$15,036
[1]	Represents the impact of the acceleration of certain vesting schedules for stock options and restricted share units pursuant to the severance arrangements related to the integration of the marketing operations of the Company's Lionsgate and Summit film labels.
[2]	Represents the income tax benefit recognized in the statements of income for share-based compensation arrangements.

Capital_Stock_Stock_Option_and

Capital Stock (Stock Option and Restricted Share Unit Activity) (Details) (USD $)	9 Months Ended
	Dec. 31, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at March 31, 2014	10,894,010
Outstanding, weighted average exercise price	$20.83
Granted	1,505,267
Granted, weighted average exercise price	$29.89
Options exercised	-268,247
Options exercised, weighted average grant-date fair value	$16.42
Forfeited or expired	-27,238
Forfeited or expired, weighted average exercise price	$17.65
Outstanding at December 31, 2014	12,103,792
Outstanding, weighted average exercise price	$22.06
Restricted Share Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at March 31, 2014	2,139,175
Outstanding, weighted average grant-date fair value	$23.38
Granted	766,652
Granted, weighted average grant date fair value	$29.48
RSUs vested	-1,108,305
RSUs vested, weighted average grant-date fair value	$22.17
Forfeited or expired	-14,011
Forfeited or expired, weighted average grant-date fair value	$18.98
Outstanding at December 31, 2014	1,783,511
Outstanding, weighted average grant-date fair value	$27.02

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Discrete and other charges (benefits) included in tax provision	($0.30)		($12)
Discrete charge associated with the gain on sale of FEARnet		4.2
Discrete charge from other discrete items		$0.40

Government_Assistance_Narrativ

Government Assistance (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
Government Assistance [Abstract]
Tax credits earned for film and television production activity	$103.50	$15	$193	$62
Tax credits receivable for film and television production	$272.90		$272.90		$115.30

Segment_Information_Segment_In

Segment Information (Segment Information By Business Unit) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
			segment
Segment Reporting Information [Line Items]
Number of reportable business segments			2
Segment revenues	$751,299	$839,939	$1,753,558	$1,908,396
Direct operating expenses	400,576	397,513	945,840	965,756
Distribution and marketing	171,439	233,535	421,637	550,497
Gross segment contribution	179,284	208,891	386,081	392,143
Segment general and administration	21,841	20,370	64,333	59,359
Segment profit (loss)	157,443	188,521	321,748	332,784
Motion Pictures [Member]
Segment Reporting Information [Line Items]
Segment revenues	590,072	757,646	1,320,012	1,630,599
Direct operating expenses	260,309	324,124	583,792	737,297
Distribution and marketing	162,884	222,979	396,587	527,774
Gross segment contribution	166,879	210,543	339,633	365,528
Segment general and administration	18,669	16,882	54,252	49,316
Segment profit (loss)	148,210	193,661	285,381	316,212
Television Production [Member]
Segment Reporting Information [Line Items]
Segment revenues	161,227	82,293	433,546	277,797
Direct operating expenses	140,267	73,389	362,048	228,459
Distribution and marketing	8,555	10,556	25,050	22,723
Gross segment contribution	12,405	-1,652	46,448	26,615
Segment general and administration	3,172	3,488	10,081	10,043
Segment profit (loss)	$9,233	($5,140)	$36,367	$16,572

Segment_Information_Reconcilia

Segment Information (Reconciliation Of Total Segment Profit To The Company's Income Before Income Taxes) (Details) (USD $)	3 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Segment Reporting [Abstract]
Company’s total segment profit	$157,443		$188,521		$321,748		$332,784
Shared services and corporate expenses:
Share-based compensation expense	-15,132		-12,064		-48,875		-52,199
Restructuring charges	-766	[1]	0	[1]	-7,008	[1]	0	[1]
Administrative proceeding	0	[2]	-7,500	[2]	0	[2]	-7,500	[2]
Other shared services and corporate expenses	-23,668		-25,643		-66,759		-67,062
Total shared services and corporate expenses	-39,566		-45,207		-122,642		-126,761
Depreciation and amortization	-1,708		-1,530		-4,685		-4,766
Operating income	116,169		141,784		194,421		201,257
Interest expense	-13,551		-15,574		-39,594		-52,560
Interest and other income	623		1,771		2,188		4,750
Loss on extinguishment of debt	-690		0		-1,276		-36,653
Equity interests income (loss)	10,898		-1,321		37,353		13,158
Income before income taxes	113,449		126,660		193,092		129,952
Non-cash charges resulting from the acceleration of vesting of stock awards	$0	[3]	$0	[3]	$1,194	[3]	$0	[3]
[1]	Restructuring charges in the nine months ended December 31, 2014 primarily consist of severance costs associated with the integration of the marketing operations of the Company's Lionsgate and Summit film labels and costs related to the move of our international sales and distribution organization to the United Kingdom. Approximately $1.2 million of the costs are non-cash charges resulting from the acceleration of vesting of stock awards (see Note 10).
[2]	Administrative proceeding represents the settlement of an administrative order.
[3]	Represents the impact of the acceleration of certain vesting schedules for stock options and restricted share units pursuant to the severance arrangements related to the integration of the marketing operations of the Company's Lionsgate and Summit film labels.

Segment_Information_Significan

Segment Information (Significant Assets Broken Down By Segment And Other Unallocated Assets) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
Significant assets by segment
Accounts receivable	$974,579		$974,579		$885,571
Investment in films and television programs, net	1,447,393		1,447,393		1,274,573
Goodwill	323,328		323,328		323,328
Total allocated assets by segment	2,745,300		2,745,300		2,483,472
Other unallocated assets (primarily cash, other assets, and equity method investments)	396,205		396,205		368,160
Total assets	3,141,505		3,141,505		2,851,632
Purchases of property and equipment	6,800	2,700	11,293	6,116
Motion Pictures [Member]
Significant assets by segment
Accounts receivable	611,888		611,888		580,906
Investment in films and television programs, net	1,116,562		1,116,562		979,576
Goodwill	294,367		294,367		294,367
Total allocated assets by segment	2,022,817		2,022,817		1,854,849
Television Production [Member]
Significant assets by segment
Accounts receivable	362,691		362,691		304,665
Investment in films and television programs, net	330,831		330,831		294,997
Goodwill	28,961		28,961		28,961
Total allocated assets by segment	$722,483		$722,483		$628,623

Segment_Information_Acquisitio

Segment Information (Acquisition of Investment in Films and Television Programs by Segment) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs	$176,450	$354,647	$815,469	$692,943
Motion Pictures [Member]
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs	89,041	212,598	517,385	432,208
Television Production [Member]
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs	$87,409	$142,049	$298,084	$260,735

Consolidating_Financial_Inform2

Consolidating Financial Information - Convertible Senior Subordinated Notes (Narrative) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2014	Jul. 31, 2013
April 2009 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Coupon rate		3.63%
January 2012 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Coupon rate		4.00%
April 2013 Notes [Member] | Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Coupon rate		1.25%
5.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Consolidating Financial Information [Line Items]
Coupon rate	5.25%	5.25%	5.25%
10.25% Senior Notes [Member] | Senior Secured Second-Priority Notes [Member]
Consolidating Financial Information [Line Items]
Coupon rate	10.25%	10.25%	10.25%
Lions Gate Entertainment Corp. [Member] | Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Deferred financing costs	$6,860
Lions Gate Entertainment Inc. [Member]
Consolidating Financial Information [Line Items]
Percentage ownership of LGEI, the issuer, by parent company guarantor		100.00%

Consolidating_Financial_Inform3

Consolidating Financial Information - Convertible Senior Subordinated Notes (Balance Sheet) (Details) (USD $)	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Assets
Cash and cash equivalents	$28,886	$25,692	$75,402	$62,363
Restricted cash	7,508	8,925
Accounts receivable, net	974,579	885,571
Investment in films and television programs, net	1,447,393	1,274,573
Property and equipment, net	22,430	14,552
Equity method investments	211,680	181,941
Goodwill	323,328	323,328
Other assets	71,372	71,067
Deferred tax assets	54,329	65,983
Total assets	3,141,505	2,851,632
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	160,500	97,619
5.25% Senior Notes	225,000	225,000
Term Loan	223,021	222,753
Accounts payable and accrued liabilities	271,101	332,457
Participations and residuals	463,093	469,390
Film obligations and production loans	737,565	499,787
Deferred revenue	279,958	288,300
Shareholders' equity (deficiency)	667,996	584,538
Total liabilities and shareholders’ equity	3,141,505	2,851,632
Convertible Senior Subordinated Notes [Member]
Assets
Cash and cash equivalents	28,886	25,692	75,402	62,363
Restricted cash	7,508	8,925
Accounts receivable, net	974,579	885,571
Investment in films and television programs, net	1,447,393	1,274,573
Property and equipment, net	22,430	14,552
Equity method investments	211,680	181,941
Goodwill	323,328	323,328
Other assets	71,372	71,067
Deferred tax assets	54,329	65,983
Subsidiary investments and advances	0	0
Total assets	3,141,505	2,851,632
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	160,500	97,619
5.25% Senior Notes	225,000	225,000
Term Loan	223,021	222,753
Accounts payable and accrued liabilities	271,101	332,457
Participations and residuals	463,093	469,390
Film obligations and production loans	737,565	499,787
Convertible senior subordinated notes	113,271	131,788
Deferred revenue	279,958	288,300
Intercompany payable	0	0
Shareholders' equity (deficiency)	667,996	584,538
Total liabilities and shareholders’ equity	3,141,505	2,851,632
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Corp. [Member]
Assets
Cash and cash equivalents	839	8,128	750	592
Restricted cash	0	0
Accounts receivable, net	741	688
Investment in films and television programs, net	0	-18
Property and equipment, net	0	0
Equity method investments	0	0
Goodwill	10,172	10,172
Other assets	3,636	4,113
Deferred tax assets	6,766	8,417
Subsidiary investments and advances	1,273,816	1,118,356
Total assets	1,295,970	1,149,856
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	160,500	97,619
5.25% Senior Notes	225,000	225,000
Term Loan	223,021	222,753
Accounts payable and accrued liabilities	19,453	19,946
Participations and residuals	0	0
Film obligations and production loans	0	0
Convertible senior subordinated notes	0	0
Deferred revenue	0	0
Intercompany payable	0	0
Shareholders' equity (deficiency)	667,996	584,538
Total liabilities and shareholders’ equity	1,295,970	1,149,856
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Inc. [Member]
Assets
Cash and cash equivalents	15,501	5,999	44,586	36,834
Restricted cash	7,508	8,925
Accounts receivable, net	5,581	2,514
Investment in films and television programs, net	6,394	6,394
Property and equipment, net	20,685	14,185
Equity method investments	5,947	3,668
Goodwill	0	0
Other assets	65,305	67,612
Deferred tax assets	38,974	48,125
Subsidiary investments and advances	1,277,306	1,065,274
Total assets	1,443,201	1,222,696
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	0	0
5.25% Senior Notes	0	0
Term Loan	0	0
Accounts payable and accrued liabilities	69,295	73,045
Participations and residuals	3,417	3,417
Film obligations and production loans	0	0
Convertible senior subordinated notes	113,271	131,788
Deferred revenue	8,813	11,689
Intercompany payable	1,414,020	1,232,310
Shareholders' equity (deficiency)	-165,615	-229,553
Total liabilities and shareholders’ equity	1,443,201	1,222,696
Convertible Senior Subordinated Notes [Member] | Non-guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	12,546	11,565	30,066	24,937
Restricted cash	0	0
Accounts receivable, net	968,257	882,369
Investment in films and television programs, net	1,440,999	1,266,703
Property and equipment, net	1,745	367
Equity method investments	205,800	178,273
Goodwill	313,156	313,156
Other assets	8,467	5,682
Deferred tax assets	8,589	9,441
Subsidiary investments and advances	2,055,224	1,532,070
Total assets	5,014,783	4,199,626
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	0	0
5.25% Senior Notes	0	0
Term Loan	0	0
Accounts payable and accrued liabilities	182,353	239,466
Participations and residuals	459,676	465,973
Film obligations and production loans	737,565	499,787
Convertible senior subordinated notes	0	0
Deferred revenue	271,145	276,611
Intercompany payable	1,991,164	1,480,273
Shareholders' equity (deficiency)	1,372,880	1,237,516
Total liabilities and shareholders’ equity	5,014,783	4,199,626
Convertible Senior Subordinated Notes [Member] | Consolidating Adjustments [Member]
Assets
Cash and cash equivalents	0	0	0	0
Restricted cash	0	0
Accounts receivable, net	0	0
Investment in films and television programs, net	0	1,494
Property and equipment, net	0	0
Equity method investments	-67	0
Goodwill	0	0
Other assets	-6,036	-6,340
Deferred tax assets	0	0
Subsidiary investments and advances	-4,606,346	-3,715,700
Total assets	-4,612,449	-3,720,546
Liabilities and Shareholders' Equity (Deficiency)
Senior revolving credit facility	0	0
5.25% Senior Notes	0	0
Term Loan	0	0
Accounts payable and accrued liabilities	0	0
Participations and residuals	0	0
Film obligations and production loans	0	0
Convertible senior subordinated notes	0	0
Deferred revenue	0	0
Intercompany payable	-3,405,184	-2,712,583
Shareholders' equity (deficiency)	-1,207,265	-1,007,963
Total liabilities and shareholders’ equity	($4,612,449)	($3,720,546)

Consolidating_Financial_Inform4

Consolidating Financial Information - Convertible Senior Subordinated Notes (Statement of Income) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Revenues	$751,299	$839,939	$1,753,558	$1,908,396
Expenses:
Direct operating	400,576	397,513	945,840	965,756
Distribution and marketing	171,439	233,535	421,637	550,497
General and administration	61,407	65,577	186,975	186,120
Depreciation and amortization	1,708	1,530	4,685	4,766
Total expenses	635,130	698,155	1,559,137	1,707,139
Operating income	116,169	141,784	194,421	201,257
Other expenses (income):
Interest expense	13,551	15,574	39,594	52,560
Interest and other income	-623	-1,771	-2,188	-4,750
Loss on extinguishment of debt	690	0	1,276	36,653
Total other expenses (income)	13,618	13,803	38,682	84,463
Income before equity interests and income taxes	102,551	127,981	155,739	116,794
Equity interests income (loss)	10,898	-1,321	37,353	13,158
Income (loss) before income taxes	113,449	126,660	193,092	129,952
Income tax provision (benefit)	15,264	37,897	30,865	27,067
Foreign currency translation adjustments	-2,373	517	-4,166	4,104
Net unrealized gain (loss) on foreign exchange contracts, net of tax	277	-114	693	-770
Comprehensive income	96,089	89,166	158,754	106,219
Convertible Senior Subordinated Notes [Member]
Revenues			1,753,558	1,908,396
Expenses:
Direct operating			945,840	965,756
Distribution and marketing			421,637	550,497
General and administration			186,975	186,120
Depreciation and amortization			4,685	4,766
Total expenses			1,559,137	1,707,139
Operating income			194,421	201,257
Other expenses (income):
Interest expense			39,594	52,560
Interest and other income			-2,188	-4,750
Loss on extinguishment of debt			1,276	36,653
Total other expenses (income)			38,682	84,463
Income before equity interests and income taxes			155,739	116,794
Equity interests income (loss)			37,353	13,158
Income (loss) before income taxes			193,092	129,952
Income tax provision (benefit)			30,865	27,067
Net income			162,227	102,885
Foreign currency translation adjustments			-4,166	4,104
Net unrealized gain (loss) on foreign exchange contracts, net of tax			693	-770
Comprehensive income			158,754	106,219
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Corp. [Member]
Revenues			0	6,748
Expenses:
Direct operating			2	-254
Distribution and marketing			0	2
General and administration			2,383	1,344
Depreciation and amortization			0	0
Total expenses			2,385	1,092
Operating income			-2,385	5,656
Other expenses (income):
Interest expense			25,919	12,496
Interest and other income			-126,019	-33,592
Loss on extinguishment of debt			0	2,600
Total other expenses (income)			-100,100	-18,496
Income before equity interests and income taxes			97,715	24,152
Equity interests income (loss)			66,045	74,296
Income (loss) before income taxes			163,760	98,448
Income tax provision (benefit)			1,533	-4,437
Net income			162,227	102,885
Foreign currency translation adjustments			-3,473	3,334
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			158,754	106,219
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Inc. [Member]
Revenues			21,565	20,989
Expenses:
Direct operating			3,243	-2,933
Distribution and marketing			1,575	2,490
General and administration			115,942	124,084
Depreciation and amortization			2,721	1,608
Total expenses			123,481	125,249
Operating income			-101,916	-104,260
Other expenses (income):
Interest expense			138,139	70,840
Interest and other income			-2,766	-4,838
Loss on extinguishment of debt			1,276	34,053
Total other expenses (income)			136,649	100,055
Income before equity interests and income taxes			-238,565	-204,315
Equity interests income (loss)			317,176	298,123
Income (loss) before income taxes			78,611	93,808
Income tax provision (benefit)			12,566	19,512
Net income			66,045	74,296
Foreign currency translation adjustments			-4,383	-59
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			61,662	74,237
Convertible Senior Subordinated Notes [Member] | Non-guarantor Subsidiaries [Member]
Revenues			1,732,520	1,889,642
Expenses:
Direct operating			942,595	968,943
Distribution and marketing			420,062	548,005
General and administration			69,010	61,093
Depreciation and amortization			1,964	3,158
Total expenses			1,433,631	1,581,199
Operating income			298,889	308,443
Other expenses (income):
Interest expense			96,941	20,036
Interest and other income			-94,457	-17,132
Loss on extinguishment of debt			0	0
Total other expenses (income)			2,484	2,904
Income before equity interests and income taxes			296,405	305,539
Equity interests income (loss)			37,224	18,328
Income (loss) before income taxes			333,629	323,867
Income tax provision (benefit)			52,982	67,244
Net income			280,647	256,623
Foreign currency translation adjustments			-1,301	26,082
Net unrealized gain (loss) on foreign exchange contracts, net of tax			693	-770
Comprehensive income			280,039	281,935
Convertible Senior Subordinated Notes [Member] | Consolidating Adjustments [Member]
Revenues			-527	-8,983
Expenses:
Direct operating			0	0
Distribution and marketing			0	0
General and administration			-360	-401
Depreciation and amortization			0	0
Total expenses			-360	-401
Operating income			-167	-8,582
Other expenses (income):
Interest expense			-221,405	-50,812
Interest and other income			221,054	50,812
Loss on extinguishment of debt			0	0
Total other expenses (income)			-351	0
Income before equity interests and income taxes			184	-8,582
Equity interests income (loss)			-383,092	-377,589
Income (loss) before income taxes			-382,908	-386,171
Income tax provision (benefit)			-36,216	-55,252
Net income			-346,692	-330,919
Foreign currency translation adjustments			4,991	-25,253
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			($341,701)	($356,172)

Consolidating_Financial_Inform5

Consolidating Financial Information - Convertible Senior Subordinated Notes (Statement of Cash Flows) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	($163,041)	$145,834
Investing Activities:
Proceeds from the sale of equity method investees	14,575	9,000
Investment in equity method investees	-14,750	-17,250
Distributions from equity method investee in excess of earnings	0	4,169
Other investments	-2,000	0
Repayment of loans receivable	0	4,275
Purchases of property and equipment	-11,293	-6,116
Net Cash Flows Provided By (Used In) Investing Activities	-13,468	-5,922
Financing Activities:
Senior revolving credit facility - borrowings	681,500	782,219
Senior revolving credit facility - repayments	-618,619	-926,574
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013	0	440,640
10.25% Senior Notes - repurchases and redemptions	0	-470,584
Convertible senior subordinated notes - borrowings	0	60,000
Convertible senior subordinated notes - repurchases	-16	0
Production loans - borrowings	533,781	359,582
Production loans - repayments	-261,868	-301,385
Pennsylvania Regional Center credit facility - repayments	0	-65,000
Repurchase of common shares	-129,859	0
Dividends paid	-23,536	0
Excess tax benefits on equity-based compensation awards	6,767	0
Exercise of stock options	4,404	10,869
Tax withholding required on equity awards	-14,939	-14,376
Net Cash Flows Provided By (Used In) Financing Activities	177,615	-124,609
Net Change In Cash And Cash Equivalents	1,106	15,303
Foreign Exchange Effects on Cash	2,088	-2,264
Cash and Cash Equivalents - Beginning Of Period	25,692	62,363
Cash and Cash Equivalents - End Of Period	28,886	75,402
Convertible Senior Subordinated Notes [Member]
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	-163,041	145,834
Investing Activities:
Proceeds from the sale of equity method investees	14,575	9,000
Investment in equity method investees	-14,750	-17,250
Distributions from equity method investee in excess of earnings		4,169
Other investments	-2,000
Repayment of loans receivable		4,275
Purchases of property and equipment	-11,293	-6,116
Net Cash Flows Provided By (Used In) Investing Activities	-13,468	-5,922
Financing Activities:
Senior revolving credit facility - borrowings	681,500	782,219
Senior revolving credit facility - repayments	-618,619	-926,574
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013		440,640
10.25% Senior Notes - repurchases and redemptions		-470,584
Convertible senior subordinated notes - borrowings		60,000
Convertible senior subordinated notes - repurchases	-16
Production loans - borrowings	533,781	359,582
Production loans - repayments	-261,868	-301,385
Pennsylvania Regional Center credit facility - repayments		-65,000
Repurchase of common shares	-129,859
Dividends paid	-23,536
Excess tax benefits on equity-based compensation awards	6,767
Exercise of stock options	4,404	10,869
Tax withholding required on equity awards	-14,939	-14,376
Net Cash Flows Provided By (Used In) Financing Activities	177,615	-124,609
Net Change In Cash And Cash Equivalents	1,106	15,303
Foreign Exchange Effects on Cash	2,088	-2,264
Cash and Cash Equivalents - Beginning Of Period	25,692	62,363
Cash and Cash Equivalents - End Of Period	28,886	75,402
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Corp. [Member]
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	93,761	-630,884
Investing Activities:
Proceeds from the sale of equity method investees	0	0
Investment in equity method investees	0	0
Distributions from equity method investee in excess of earnings		0
Other investments	0
Repayment of loans receivable		0
Purchases of property and equipment	0	0
Net Cash Flows Provided By (Used In) Investing Activities	0	0
Financing Activities:
Senior revolving credit facility - borrowings	681,500	319,119
Senior revolving credit facility - repayments	-618,619	-125,000
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013		440,640
10.25% Senior Notes - repurchases and redemptions		0
Convertible senior subordinated notes - borrowings		0
Convertible senior subordinated notes - repurchases	0
Production loans - borrowings	0	0
Production loans - repayments	0	0
Pennsylvania Regional Center credit facility - repayments		0
Repurchase of common shares	-129,859
Dividends paid	-23,536
Excess tax benefits on equity-based compensation awards	0
Exercise of stock options	4,404	10,869
Tax withholding required on equity awards	-14,939	-14,376
Net Cash Flows Provided By (Used In) Financing Activities	-101,049	631,252
Net Change In Cash And Cash Equivalents	-7,288	368
Foreign Exchange Effects on Cash	-1	-210
Cash and Cash Equivalents - Beginning Of Period	8,128	592
Cash and Cash Equivalents - End Of Period	839	750
Convertible Senior Subordinated Notes [Member] | Lions Gate Entertainment Inc. [Member]
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	16,210	761,836
Investing Activities:
Proceeds from the sale of equity method investees	0	0
Investment in equity method investees	-2,150	-750
Distributions from equity method investee in excess of earnings		0
Other investments	-2,000
Repayment of loans receivable		0
Purchases of property and equipment	-9,309	-4,276
Net Cash Flows Provided By (Used In) Investing Activities	-13,459	-5,026
Financing Activities:
Senior revolving credit facility - borrowings	0	463,100
Senior revolving credit facility - repayments	0	-801,574
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013		0
10.25% Senior Notes - repurchases and redemptions		-470,584
Convertible senior subordinated notes - borrowings		60,000
Convertible senior subordinated notes - repurchases	-16
Production loans - borrowings	0	0
Production loans - repayments	0	0
Pennsylvania Regional Center credit facility - repayments		0
Repurchase of common shares	0
Dividends paid	0
Excess tax benefits on equity-based compensation awards	6,767
Exercise of stock options	0	0
Tax withholding required on equity awards	0	0
Net Cash Flows Provided By (Used In) Financing Activities	6,751	-749,058
Net Change In Cash And Cash Equivalents	9,502	7,752
Foreign Exchange Effects on Cash	0	0
Cash and Cash Equivalents - Beginning Of Period	5,999	36,834
Cash and Cash Equivalents - End Of Period	15,501	44,586
Convertible Senior Subordinated Notes [Member] | Non-guarantor Subsidiaries [Member]
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	-273,012	14,882
Investing Activities:
Proceeds from the sale of equity method investees	14,575	9,000
Investment in equity method investees	-12,600	-16,500
Distributions from equity method investee in excess of earnings		4,169
Other investments	0
Repayment of loans receivable		4,275
Purchases of property and equipment	-1,984	-1,840
Net Cash Flows Provided By (Used In) Investing Activities	-9	-896
Financing Activities:
Senior revolving credit facility - borrowings	0	0
Senior revolving credit facility - repayments	0	0
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013		0
10.25% Senior Notes - repurchases and redemptions		0
Convertible senior subordinated notes - borrowings		0
Convertible senior subordinated notes - repurchases	0
Production loans - borrowings	533,781	359,582
Production loans - repayments	-261,868	-301,385
Pennsylvania Regional Center credit facility - repayments		-65,000
Repurchase of common shares	0
Dividends paid	0
Excess tax benefits on equity-based compensation awards	0
Exercise of stock options	0	0
Tax withholding required on equity awards	0	0
Net Cash Flows Provided By (Used In) Financing Activities	271,913	-6,803
Net Change In Cash And Cash Equivalents	-1,108	7,183
Foreign Exchange Effects on Cash	2,089	-2,054
Cash and Cash Equivalents - Beginning Of Period	11,565	24,937
Cash and Cash Equivalents - End Of Period	12,546	30,066
Convertible Senior Subordinated Notes [Member] | Consolidating Adjustments [Member]
Consolidating Financial Information [Line Items]
Net Cash Flows Provided By (Used In) Operating Activities	0	0
Investing Activities:
Proceeds from the sale of equity method investees	0	0
Investment in equity method investees	0	0
Distributions from equity method investee in excess of earnings		0
Other investments	0
Repayment of loans receivable		0
Purchases of property and equipment	0	0
Net Cash Flows Provided By (Used In) Investing Activities	0	0
Financing Activities:
Senior revolving credit facility - borrowings	0	0
Senior revolving credit facility - repayments	0	0
5.25% Senior Notes and Term Loan - borrowings, net of deferred financing costs of $6,860 in 2013		0
10.25% Senior Notes - repurchases and redemptions		0
Convertible senior subordinated notes - borrowings		0
Convertible senior subordinated notes - repurchases	0
Production loans - borrowings	0	0
Production loans - repayments	0	0
Pennsylvania Regional Center credit facility - repayments		0
Repurchase of common shares	0
Dividends paid	0
Excess tax benefits on equity-based compensation awards	0
Exercise of stock options	0	0
Tax withholding required on equity awards	0	0
Net Cash Flows Provided By (Used In) Financing Activities	0	0
Net Change In Cash And Cash Equivalents	0	0
Foreign Exchange Effects on Cash	0	0
Cash and Cash Equivalents - Beginning Of Period	0	0
Cash and Cash Equivalents - End Of Period	$0	$0

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
Derivative [Line Items]
Remaining maturity of forward foreign exchange contracts, maximum			23 months
Net unrealized fair value gain (loss) on foreign exchange contracts, effective portion	$277,000	($114,000)	$693,000	($770,000)
Net unrealized fair value gain on foreign exchange contracts that did not qualify as effective hedge contracts	0	0	400,000	0
Other Assets [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative asset	6,000,000		6,000,000
Derivative assets (liabilities) at fair value, net					1,800,000
Accounts Payable and Accrued Liabilities [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative liability	$3,100,000		$3,100,000

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities (Outstanding Forward Foreign Exchange Contracts) (Details) (Foreign Exchange Forward [Member])	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014
In Millions, unless otherwise specified	British Pounds Sterling	British Pounds Sterling	Australia, Dollars	Australia, Dollars	Canada, Dollars	Canada, Dollars
	USD ($)	GBP (£)	USD ($)	AUD	USD ($)	CAD
Derivative [Line Items]
Foreign Currency Amount		£ 19.6		31.9		0.6
US Dollar Amount	$31.60		$28.70		$0.60
Weighted average exchange rate per $1 USD	0.62	0.62	1.11	1.11	1.09	1.09

Supplementary_Cash_Flow_Statem2

Supplementary Cash Flow Statement Information (Non-Cash Investing and Financing Activities) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Non-cash financing activities
Accrued dividends (see Note 10)	$9,817	$6,900
Accrued share repurchases	2,106	0
Conversions of convertible senior subordinated notes (see Note 5)	$24,145	$3,150

Subsequent_Events_Unaudited_Na

Subsequent Events (Unaudited) (Narrative) (Details) (USD $)	9 Months Ended	1 Months Ended	13 Months Ended
	Dec. 31, 2014	Jan. 21, 2015	Jan. 21, 2015	Dec. 17, 2013	Dec. 16, 2013
Subsequent Event [Line Items]
Share repurchase plan, authorized amount				$300,000,000	$150,000,000
Common shares repurchased during period, value	123,626,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Share repurchase plan, authorized amount		300,000,000	300,000,000
Common shares repurchased during period, shares		400,000	5,300,000
Common shares repurchased during period, value		12,900,000	144,800,000
Weighted average repurchase price per share		$29.81	$27.11
Share repurchase plan, remaining capacity		$89,900,000	$89,900,000