INVESTMENTS (Details) (USD $)	3 Months Ended	4 Months Ended	5 Months Ended	9 Months Ended	12 Months Ended			0 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	4 Months Ended	9 Months Ended	0 Months Ended			5 Months Ended	12 Months Ended										4 Months Ended	5 Months Ended	12 Months Ended		4 Months Ended	5 Months Ended	12 Months Ended			5 Months Ended	12 Months Ended				0 Months Ended							12 Months Ended		0 Months Ended			0 Months Ended			9 Months Ended						0 Months Ended			9 Months Ended			1 Months Ended	12 Months Ended	4 Months Ended	9 Months Ended		9 Months Ended	0 Months Ended				4 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended					4 Months Ended	5 Months Ended	12 Months Ended		4 Months Ended	5 Months Ended	12 Months Ended				9 Months Ended		0 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Aug. 30, 2012 Predecessor	Dec. 29, 2011 Predecessor	Mar. 29, 2012 Predecessor	Mar. 31, 2011 Predecessor	Mar. 17, 2011 NCM Inc.	Feb. 13, 2007 NCM Inc. Predecessor	Dec. 31, 2012 Investments in non-consolidated affiliates and certain other investments accounted for following the equity method Predecessor	Mar. 29, 2012 Investments in non-consolidated affiliates and certain other investments accounted for following the equity method Predecessor	Feb. 13, 2007 NCM	Dec. 31, 2012 NCM	Dec. 31, 2012 NCM	Sep. 08, 2010 NCM Predecessor	Aug. 18, 2010 NCM Predecessor	Feb. 13, 2007 NCM Predecessor	Aug. 30, 2012 NCM Predecessor	Mar. 29, 2012 NCM Predecessor	Mar. 31, 2011 NCM Predecessor	Apr. 01, 2010 NCM Predecessor	Dec. 31, 2012 NCM Predecessor	Sep. 30, 2010 NCM Predecessor	Jun. 28, 2010 NCM Predecessor	Jun. 14, 2010 NCM Predecessor	Mar. 31, 2009 NCM Predecessor	May 29, 2008 NCM Predecessor	Mar. 27, 2008 NCM Predecessor	Dec. 31, 2012 NCM Advertising (Revenue)	Aug. 30, 2012 NCM Advertising (Revenue) Predecessor	Mar. 29, 2012 NCM Advertising (Revenue) Predecessor	Mar. 31, 2011 NCM Advertising (Revenue) Predecessor	Dec. 31, 2012 NCM Advertising expense	Aug. 30, 2012 NCM Advertising expense Predecessor	Mar. 29, 2012 NCM Advertising expense Predecessor	Mar. 31, 2011 NCM Advertising expense Predecessor	Dec. 31, 2012 NCM Cash Received	Aug. 30, 2012 NCM Cash Received Predecessor	Mar. 29, 2012 NCM Cash Received Predecessor	Mar. 31, 2011 NCM Cash Received Predecessor	Mar. 31, 2011 NCM Capital units Predecessor	Aug. 30, 2012 NCM Capital units Predecessor	Aug. 30, 2012 NCM Tranche 2 Investments Predecessor	Mar. 17, 2011 NCM Tranche 2 Investments Predecessor	Jun. 28, 2010 NCM Tranche 2 Investments Predecessor	Mar. 17, 2010 NCM Tranche 2 Investments Predecessor	Mar. 17, 2009 NCM Tranche 2 Investments Predecessor	Mar. 29, 2008 NCM Tranche 2 Investments Predecessor	Mar. 27, 2008 NCM Tranche 2 Investments Predecessor	Mar. 29, 2012 NCM Tranche 2 Investments Predecessor	Mar. 31, 2011 NCM Tranche 2 Investments Predecessor	Feb. 13, 2007 NCM Preferred units Predecessor	Mar. 16, 2012 NCM Common units Predecessor	Dec. 31, 2012 NCM NCM Inc.	Sep. 08, 2010 NCM NCM Inc. Predecessor	Aug. 18, 2010 NCM NCM Inc. Predecessor	Feb. 13, 2007 NCM NCM Inc. Predecessor	Dec. 31, 2012 NCM NCM Inc. Predecessor	Mar. 29, 2012 NCM NCM Inc. Predecessor	Mar. 29, 2011 NCM NCM Inc. Predecessor	Apr. 01, 2010 NCM NCM Inc. Predecessor	Mar. 29, 2009 NCM NCM Inc. Predecessor	Mar. 17, 2009 NCM NCM Inc. Predecessor	Feb. 13, 2007 NCM NCM Inc. Preferred units Predecessor	Feb. 13, 2007 NCM NCM Inc. Common units Predecessor	May 29, 2008 NCM Founding Members Tranche 2 Investments Predecessor	Dec. 31, 2012 U.S. theatres and IMAX screen theatre Screen	Dec. 29, 2011 U.S. theatres and IMAX screen	Dec. 31, 2012 MEP	Jun. 30, 2012 MEP Predecessor	Mar. 31, 2011 MEP Predecessor	Dec. 31, 2012 DCIP mm	Dec. 31, 2012 DCIP mm	Mar. 29, 2012 DCIP	Dec. 31, 2012 DCIP Expected	Oct. 29, 2010 DCIP Predecessor item	Sep. 20, 2010 DCIP Predecessor item	Mar. 26, 2010 DCIP Predecessor item	Mar. 10, 2010 DCIP Predecessor item	Dec. 31, 2012 DCIP Predecessor	Aug. 30, 2012 DCIP Predecessor	Aug. 30, 2012 DCIP Predecessor	Mar. 29, 2012 DCIP Predecessor	Mar. 31, 2011 DCIP Predecessor item	Apr. 01, 2010 DCIP Predecessor item	Dec. 31, 2012 Open Road Releasing, LLC, operator of ORF	Mar. 29, 2012 Open Road Releasing, LLC, operator of ORF	Dec. 31, 2012 Open Road Releasing, LLC, operator of ORF Predecessor	Aug. 30, 2012 Open Road Releasing, LLC, operator of ORF Predecessor	Mar. 29, 2012 Open Road Releasing, LLC, operator of ORF Predecessor	Mar. 31, 2011 Open Road Releasing, LLC, operator of ORF Predecessor	Dec. 31, 2012 NCM and Other	Aug. 30, 2012 NCM and Other Predecessor	Mar. 29, 2012 NCM and Other Predecessor	Mar. 31, 2011 NCM and Other Predecessor	Dec. 31, 2012 Maximum Investments in non-consolidated affiliates and certain other investments accounted for following the equity method	Dec. 31, 2012 Minimum NCM Founding Members	Dec. 31, 2012 Minimum NCM Founding Members Predecessor	Dec. 31, 2012 RealD Inc. item	Dec. 29, 2012 RealD Inc. Common units Predecessor	Dec. 29, 2011 RealD Inc. Common units Predecessor	Feb. 13, 2007 AMC Predecessor	Aug. 30, 2012 AMC Capital units	Aug. 30, 2012 AMC Tranche 2 Investments	Mar. 17, 2010 AMC Tranche 2 Investments	Mar. 17, 2009 AMC Tranche 2 Investments	Mar. 27, 2008 AMC Tranche 2 Investments
Investments
Interest in non-consolidated affiliates (as a percent)							17.14%					15.47%	15.47%						15.66%	18.23%		17.02%	23.05%	17.13%	18.53%	18.52%	19.10%																																								50.00%	50.00%			29.00%	29.00%													50.00%										50.00%						33.70%
Interest in non-consolidated affiliates sold (as a percent)																																																																					50.00%
Number of U.S. theatres																																																																		2
Number of IMAX screens																																																																		1
Period over which shares of common stock can be purchased																																																																																																		10 years
Number of shares of common stock that can be purchased																																																																																																		1,222,780
Price at which each share of common stock can be purchased (in dollars per share)																																																																																																		$ 0.00667
Number of tranches in which stock options shall be vested upon the achievement of screen installation targets																																																																																																		3
Period over which deferred lease incentive is being amortized																																																																																																		9 years
RealD deferred lease incentive	$ 21,223,000	$ 21,223,000			$ 23,768,000																																																																																													$ 21,223,000
Period for which investment in common stock had been in an unrealized loss position																																																																																																			6 months
Impairment of RealD Inc. investment					17,751,000																																																																																															17,751,000
Amount of financing completed by equity method investee																																																																														660,000,000					220,000,000
Number of digital projection systems deployed																																																																														14,000					15,000
Number of owned projection systems sold																																																																											57	29	124							342
Estimated fair value of additional investment																																																																																				21,768,000
Cash investment made																																																																																				840,000
Distribution of excess cash made by equity method investee																																																																																				1,262,000
Loss on sale of digital projection systems		(73,000)																																																																										110,000	697,000							563,000
Number of digital projection systems acquired from third party lessors																																																																													117
Acquisition of digital projectors from third party lessors																																																																													6,784,000
Number of owned and acquired digital projectors sold																																																																													7
Proceeds from sale and lease back of digital projectors					953,000	4,905,000																																																																					3,250,000	1,655,000	6,570,000
Size of existing projection systems (in millimeters)																																																																							35	35
Shares of common stock issued in IPO								42,000,000
Price of shares of common stock issued in IPO (in dollars per share)								$ 21.00
Exchange ratio of common units of related party to its shares of common stock																																																																1
Redemption price of each existing preferred unit of equity method investee (in dollars per share)																																																																$ 13.7782
Proceeds from new term loan facility																																																			725,000,000
Proceeds from related party used to redeem preferred units of equity method investment																																																															59,800,000
Redemption or sale of units						102,224,000																																	102,224,000												259,347,000													26,467,000
Consideration received for modifying the ESA																																																								231,308,000
Term of ESA for advertising																																																								30 years
Term of ESA for meeting event and digital programming services																																																								5 years
Term of ESA for the right of first refusal for the services																																																								5 years
Period prior to end of term of ESA from which the right of first refusal begins																1 year
Increase in theatre access fee per patron every five years (as a percent)																					8.00%
Period for which theatre access fee increases													5 years
Annual increase in theatre access fee per digital screen (as a percent)																					5.00%
Payment of theatre access fee to the Founding Members as a percentage of NCM's aggregate advertising revenue																																																																																																	12.00%
Loews Screen Integration payments																				15,982,000
Interest of the related party in non-consolidated affiliates after IPO (as a percent)																																																								18.60%
Change of interest gain		(2,480,000)	7,545,000	1,864,000	12,559,000	17,178,000						(4,271,000)				132,622,000	7,473,000	28,489,000	32,851,000																							(2,523,000)							(5,250,000)	(7,763,000)																					4,436,000									4,941,000		1,726,000	(5,231,000)				(10,691,000)	(6,416,000)	(14,726,000)	(366,000)	(496,000)	1,547,000	(2,930,000)	(10,076,000)
Distributions received in excess of investment in NCM related to the redemption of preferred and common units											106,188,000
Percentage change in the total annual attendance of all the founding members required to cause an earlier common unit adjustment																																																																																																2.00%
Number of additional units received (in shares)																																												6,510,209		127,290	406,371	939,853
Estimated fair market value of the units												244,785,000	244,785,000											111,520,000																								21,598,000
Price per share (in dollars per share)																																													$ 17.99			$ 22.98					$ 14.13									$ 13.42
Number of units issued to Founding Member due to an acquisition (in shares)																																													2,290,000	5,453,000																			2,913,754
Number of shares sold in an underwritten public offering																																																						155,193	6,500,000
Price of shares sold in an underwritten public offering (in dollars per share)																																																						$ 16.00	$ 16.00
Reduction in aggregate carrying amount of investment in NCM														867,000	36,709,000				(37,576,000)
Net proceeds received on sale of shares of common stock														2,384,000	99,840,000
Underwriting fees and professional and consulting costs														99,000	4,160,000
Gain on sale of shares of NCM														1,517,000	63,131,000				(64,648,000)
Number of units surrendered																																								1,479,638
Number of units owned (in shares)																																								17,323,782	17,323,782																																																													12,906,740	519,979	70,424	3,601,811	224,828
Reduction to deferred revenues due to surrender of common units																			25,361,000																								25,361,000
Reduction in aggregate carrying amount of investment in NCM																			(25,568,000)																								25,568,000
Loss on surrender of units																			207,000																								207,000
Payment to retain common units																																						(214,000)														214,000
Number of common units retained																																																				16,717
Payment to the Founding Members as a percentage of actual tax benefit realized from the tax amortization of the intangible assets by related party																																																					90.00%
Period of applicability of the tax receivable agreement to related party from its IPO																																																									30 years
Amounts due from affiliate												1,978,000	1,978,000					1,909,000																																																					736,000	736,000	1,437,000												1,950,000	597,000
Amounts due to affiliate												2,021,000	2,021,000					1,823,000
Revenues																												11,086,000	11,731,000	24,351,000	22,408,000
Expenses																																4,197,000	6,326,000	13,447,000	12,458,000
Capital contributions for projector and installation costs in excess of the cap per system for digital conversations																																																																										68,000
Term from the inception of the agreement to commence scheduled escalations of rent																																																																								6 years 6 months
Deferred rent	10,318,000	10,318,000			126,224,000																																																																		1,810,000	1,810,000										5,003,000
Digital equipment rental expense recorded		143,374,000	189,086,000	334,607,000	445,326,000	451,874,000																																																																	3,338,000	6,969,000							969,000	3,624,000	969,000	6,969,000
Film rentals																																																																																					326,000				1,843,000
Film exhibition costs		291,561,000	436,539,000	694,863,000	916,054,000	860,470,000																																																																																	5,500,000	1,550,000	7,000,000
Film exhibition costs which were partially offset by promoted content earned																																																																																							807,000	548,000	597,000
Financial Condition:
Current assets	203,481,000	203,481,000			185,857,000																																																																		56,322,000	56,322,000										43,273,000			42,712,000				37,486,000		104,447,000		105,098,000
Noncurrent assets	1,512,020,000	1,512,020,000			1,510,741,000																																																																		1,153,610,000	1,153,610,000										1,122,938,000			7,352,000				10,507,000		351,058,000		377,296,000
Total assets	1,715,501,000	1,715,501,000			1,696,598,000																																																																		1,209,932,000	1,209,932,000										1,166,211,000			50,064,000				47,993,000		455,505,000		482,394,000
Current liabilities	206,189,000	206,189,000			147,934,000																																																																		54,211,000	54,211,000										47,203,000			67,402,000				35,477,000		84,576,000		65,254,000
Noncurrent liabilities	1,902,195,000	1,902,195,000			1,892,647,000																																																																		1,016,135,000	1,016,135,000										1,016,216,000			7,060,000				2,700,000		879,000,000		873,731,000
Total liabilities	2,108,384,000	2,108,384,000			2,040,581,000																																																																		1,070,346,000	1,070,346,000										1,063,419,000			74,462,000				38,177,000		963,576,000		938,985,000
Stockholders' equity (deficit)	(392,883,000)	(392,883,000)			(343,983,000)																																																																		139,586,000	139,586,000										102,792,000			(24,398,000)				9,816,000		(508,071,000)		(456,591,000)
Liabilities and stockholders' equity (deficit)	1,715,501,000	1,715,501,000			1,696,598,000																																																																		1,209,932,000	1,209,932,000										1,166,211,000			50,064,000				47,993,000		455,505,000		482,394,000
Common membership units carried at cost	267,422,000	267,422,000			109,061,000							246,058,000	246,058,000				72,323,000		74,551,000	28,826,000																																																			25,234,000	25,234,000										24,963,000			(6,781,000)				4,908,000		252,331,000		79,190,000
Operating Results:
Revenues		343,780,000	360,403,000		658,940,000	499,178,000																																																																	56,851,000									71,560,000		134,640,000	52,140,000				99,701,000	42,563,000	44,842,000		187,228,000	246,280,000	479,458,000	447,038,000
Operating costs and expenses		319,223,000	293,493,000		551,921,000	389,059,000																																																																	43,052,000									55,378,000		129,690,000	70,803,000				121,083,000	55,395,000	74,294,000	732,000	155,088,000	182,720,000	347,937,000	317,524,000
Net earnings (loss)		24,557,000	66,910,000		107,019,000	110,119,000																																																																	13,799,000									16,182,000		4,950,000	(18,663,000)				(21,382,000)	(12,832,000)	(29,452,000)	(732,000)	32,140,000	63,560,000	131,521,000	129,514,000
The Company's recorded equity in earnings (losses)		(2,480,000)	7,545,000	1,864,000	12,559,000	17,178,000						(4,271,000)				132,622,000	7,473,000	28,489,000	32,851,000																							(2,523,000)							(5,250,000)	(7,763,000)																					4,436,000									4,941,000		1,726,000	(5,231,000)				(10,691,000)	(6,416,000)	(14,726,000)	(366,000)	(496,000)	1,547,000	(2,930,000)	(10,076,000)
Impairment charge related to joint venture investment					2,742,000	8,825,000			8,825,000	2,742,000																																																												8,825,000
Changes in carrying amount of investment in NCM and equity in earnings of NCM
Balance at the beginning of the period			109,061,000															74,551,000	28,826,000																																																													24,963,000					(6,781,000)			4,908,000				79,190,000
Receipt of Common Units												244,785,000	244,785,000											111,520,000																								21,598,000
Exchange and sale of NCM stock														867,000	36,709,000				(37,576,000)
Surrender of Common Units																			(25,568,000)																								25,568,000
Purchase Price Adjustment												177,832,000
Receipt of excess cash distributions												10,176,000	10,176,000				(1,701,000)	(6,444,000)	(8,592,000)
Receipt under Tax Receivable Agreement																		(1,840,000)	(1,815,000)																																							6,248,000	6,637,000	8,788,000	3,796,000
Receipt of tax credits																			(7,000)
Change in interest loss																	(16,000)
Unrealized gain from cash flow hedge												797,000
Equity in earnings												(4,271,000)	(4,271,000)				2,523,000																																5,250,000	7,763,000
Balance at the end of the period	267,422,000	267,422,000			109,061,000							246,058,000	246,058,000				72,323,000		74,551,000	28,826,000																																																			25,234,000	25,234,000										24,963,000			(6,781,000)				4,908,000		252,331,000		79,190,000
Deferred Revenue
Balance at the beginning of the period																	(328,442,000)	(333,792,000)	(252,322,000)
Receipt of Common Units																			(111,520,000)
Surrender of Common Units																			25,361,000																								25,361,000
Payment to retain Common Units																		214,000
Purchase Price Adjustment												3,453,000
Amortization of deferred revenue												4,468,000					2,367,000	5,136,000	4,689,000
Balance at the end of the period												(318,154,000)	(318,154,000)				(326,075,000)	(328,442,000)	(333,792,000)	(252,322,000)
Other Comprehensive (Income)
Other Comprehensive (income) adjusted to investment												(797,000)
Other Comprehensive (Income) at the end of the period												(797,000)
Cash Received (Paid)
Balance at the beginning of the period																																				10,176,000	31,309,000	137,726,000
Exchange and sale of NCM stock						102,224,000																																	102,224,000												259,347,000													26,467,000
Receipt of excess cash distributions												10,176,000																									6,667,000	25,275,000	28,843,000
Receipt under Tax Receivable Agreement																																						6,248,000	6,637,000
Receipt of tax credits																																							22,000
Payment to retain common units																																						(214,000)														214,000
Balance at the end of the period																																				10,176,000	6,667,000	31,309,000	137,726,000
Equity in (Earnings) Losses
Receipt of excess cash distributions																	(4,966,000)	(18,831,000)	(20,251,000)
Receipt under Tax Receivable Agreement																		(4,408,000)	(4,822,000)
Receipt of tax credits																			(15,000)
Change in interest loss																	16,000
Equity in earnings		(2,480,000)	7,545,000	1,864,000	12,559,000	17,178,000						(4,271,000)				132,622,000	7,473,000	28,489,000	32,851,000																							(2,523,000)							(5,250,000)	(7,763,000)																					4,436,000									4,941,000		1,726,000	(5,231,000)				(10,691,000)	(6,416,000)	(14,726,000)	(366,000)	(496,000)	1,547,000	(2,930,000)	(10,076,000)
Advertising (Revenue)
Amortization of deferred revenue												(4,468,000)					(2,367,000)	(5,136,000)	(4,689,000)
Advertising (Revenue)												(4,468,000)					(2,367,000)	(5,136,000)	(4,689,000)
(Gain) on NCM Transactions
Exchange and sale of NCM stock														1,517,000	63,131,000				(64,648,000)
Surrender of Common Units																			207,000																								207,000
Total (Gain) on NCM Transactions						64,441,000													(64,441,000)
Investment in NCM (See Note 7-Investments)	267,422,000	267,422,000			109,061,000							246,058,000	246,058,000				72,323,000		74,551,000	28,826,000																																																			25,234,000	25,234,000										24,963,000			(6,781,000)				4,908,000		252,331,000		79,190,000
Term of amortization of the exhibitor services agreement (ESA) modifications payment received from NCM (in years)													30 years
Capital contributions for projector and installation costs in excess of the cap per system for new build locations																																																																										44,000
Purchase Price Fair Value Adjustment	$ 177,832,000											$ 3,453,000