INVESTMENTS (Details) (USD $)
 3 Months Ended 4 Months Ended 12 Months Ended 1 Months Ended 5 Months Ended 0 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Mar. 31, 2014
Aug. 30, 2012
Feb. 13, 2007
Mar. 14, 2013
Dec. 26, 2013
item
Investments                                
Amount of excess proportional ownership in equity of investments excluding NCM $ 13,257,000                 $ 13,257,000            
RealD deferred lease incentive 16,047,000       18,635,000         16,047,000 18,635,000          
Impairment of RealD Inc. investment                     1,370,000          
The company's recorded investment 332,440,000       327,910,000         332,440,000 327,910,000          
Amortizable intangible asset 141,491,000       141,886,000         141,491,000 141,886,000          
The Company's recorded equity in earnings (losses) 9,315,000 13,087,000 9,597,000 (5,384,000) 9,292,000 14,323,000 23,274,000 546,000 (2,480,000) 26,615,000 47,435,000          
Deferred rent liability for digital projectors 120,184,000       55,272,000         120,184,000 55,272,000          
Gross film exhibition cost on Open Road Films 244,318,000 220,608,000 257,220,000 212,100,000 258,187,000 242,006,000 285,395,000 191,324,000 291,561,000 934,246,000 976,912,000          
Financial Condition:                                
Current assets 255,269,000       357,259,000         255,269,000 357,259,000          
Noncurrent assets 1,651,121,000       1,741,203,000         1,651,121,000 1,741,203,000          
Total assets 1,906,390,000       2,098,462,000         1,906,390,000 2,098,462,000          
Current liabilities 202,392,000       233,150,000         202,392,000 233,150,000          
Noncurrent liabilities 1,735,864,000       1,920,109,000         1,735,864,000 1,920,109,000          
Total liabilities 1,938,256,000       2,153,259,000         1,938,256,000 2,153,259,000          
Stockholders' equity (deficit) (31,866,000)       (54,797,000)         (31,866,000) (54,797,000)          
Liabilities and stockholders' equity 1,906,390,000       2,098,462,000         1,906,390,000 2,098,462,000          
The company's recorded investment 332,440,000       327,910,000         332,440,000 327,910,000          
Operating Results:                                
Revenues                 283,780,000 809,087,000 804,326,000          
Operating costs and expenses                 259,223,000 661,473,000 582,774,000          
Net earnings (loss)                 24,557,000 147,614,000 221,552,000          
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Balance at the beginning of the period       327,910,000           327,910,000            
Balance at the end of the period 332,440,000       327,910,000         332,440,000 327,910,000          
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities (9,315,000) (13,087,000) (9,597,000) 5,384,000 (9,292,000) (14,323,000) (23,274,000) (546,000) 2,480,000 (26,615,000) (47,435,000)          
5% Promissory Note payable to NCM due 2019                                
Investments                                
Stated interest rate (as a percent) 5.00%                 5.00%            
NCM tax receivable agreement                                
Investments                                
Amortizable intangible asset 20,900,000       20,900,000         20,900,000 20,900,000          
RealD Inc.                                
Investments                                
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                 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                   7 years            
RealD deferred lease incentive 16,047,000                 16,047,000            
Rave                                
Investments                                
Number of additional units received (in shares)                       141,731        
Estimated fair market value of the units       2,137,000               2,137,000        
Price per share (in dollars per share)       $ 15.08               $ 15.08        
Share Price       $ 15.08               $ 15.08        
Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         7,545,000      
Operating Results:                                
Revenues                         360,403,000      
Operating costs and expenses                         293,493,000      
Net earnings (loss)                         66,910,000      
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                         (7,545,000)      
Advertising (Revenue)                                
Advertising (Revenue)                                
Amortization of ESA                 (4,468,000) (15,235,000) (14,556,000)          
Advertising (Revenue) for the period                 (4,468,000) (15,235,000) (14,556,000)          
Advertising (Revenue) | Predecessor                                
Advertising (Revenue)                                
Amortization of ESA                         (2,367,000)      
Advertising (Revenue) for the period                         (2,367,000)      
Cash Received (Paid)                                
Cash Received                                
Balance at the beginning of the period       27,453,000       10,176,000   27,453,000 10,176,000          
Receipt of excess cash distributions                 10,176,000 21,514,000 27,453,000          
Balance at the end of the period 21,514,000       27,453,000       10,176,000 21,514,000 27,453,000          
Cash Received (Paid) | Predecessor                                
Cash Received                                
Receipt of excess cash distributions                         6,667,000      
Balance at the end of the period                         6,667,000      
Exhibitor services agreement                                
Exhibitor services agreement                                
Balance at the beginning of the period       (329,913,000)       (318,154,000)   (329,913,000) (318,154,000)          
Purchase Price Adjustment                 3,453,000              
Receipt of Common Units                   2,137,000 (26,315,000)          
Amortization of ESA                 4,468,000 15,235,000 14,556,000          
Balance at the end of the period (316,815,000)       (329,913,000)       (318,154,000) (316,815,000) (329,913,000)          
Exhibitor services agreement | Predecessor                                
Exhibitor services agreement                                
Balance at the beginning of the period                         (328,442,000)      
Amortization of ESA                         2,367,000      
Balance at the end of the period                         (326,075,000)      
Other Comprehensive (Income)                                
Other Comprehensive (Income)                                
Other comprehensive (income) at the end of the period       (2,282,000)       (797,000)   (2,282,000) (797,000)          
Unrealized gain from cash flow hedge                 (797,000) (1,498,000) (1,485,000)          
Other comprehensive (income) at the end of the period (3,780,000)       (2,282,000)       (797,000) (3,780,000) (2,282,000)          
Equity in (Earnings) Losses                                
Investments                                
The Company's recorded equity in earnings (losses)                 4,271,000 11,311,000 23,196,000          
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Change in interest gain         (5,012,000)           (5,012,000)          
Equity in earnings                 4,271,000 14,446,000 21,149,000          
Equity in loss from amortization of basis difference 3,135,000       2,965,000         3,135,000 2,965,000          
Equity in Loss                                
Change in interest gain         (5,012,000)           (5,012,000)          
Equity in loss                 (4,271,000) (14,446,000) (21,149,000)          
Equity in loss from amortization of basis difference 3,135,000       2,965,000         3,135,000 2,965,000          
Equity in (earnings) losses of non-consolidated entities                 (4,271,000) (11,311,000) (23,196,000)          
Equity in (Earnings) Losses | Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         7,473,000      
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Equity in earnings                         2,523,000      
Equity in Loss                                
Receipt of excess cash distributions                         (4,966,000)      
Change in interest loss                         16,000      
Equity in loss                         (2,523,000)      
Equity in (earnings) losses of non-consolidated entities                         (7,473,000)      
Tranche 2 Investments                                
Investments                                
Price per share (in dollars per share)       $ 15.08               $ 15.08        
Receipt of common units                       2,137,000        
Receipt of common units (in shares)                       141,731        
Share Price       $ 15.08               $ 15.08        
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Receipt of common units                       2,137,000        
Receipt of common units (in shares)                       141,731        
Tranche 2 Investments | Predecessor | OpCo                                
Investments                                
Number of units owned (in shares)                         4,417,042      
Capital units | OpCo                                
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Cost of Tranche 1 Investment                         0      
Capital units | Predecessor | OpCo                                
Investments                                
Number of units owned (in shares)                         12,906,740      
NCM, LLC                                
Investments                                
Note payable to affiliate 6,944,000       8,333,000         6,944,000 8,333,000          
NCM, LLC | NCM tax receivable agreement                                
Investments                                
Receipt under Tax Receivable Agreement 8,730,000       3,677,000       0 8,730,000 3,677,000          
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Receipt under Tax Receivable Agreement (8,730,000)       (3,677,000)       0 (8,730,000) (3,677,000)          
NCM, LLC | Predecessor                                
Investments                                
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    
NCM, LLC | Predecessor | NCM tax receivable agreement                                
Investments                                
Receipt under Tax Receivable Agreement                         0      
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Receipt under Tax Receivable Agreement                         0      
NCM, LLC | Advertising (Revenue)                                
Investments                                
Amounts due from affiliate 2,072,000       2,226,000         2,072,000 2,226,000          
Revenues                 11,086,000 34,523,000 33,790,000          
NCM, LLC | Advertising (Revenue) | Predecessor                                
Investments                                
Revenues                         11,731,000      
NCM, LLC | Advertising expense                                
Investments                                
Expenses                 4,197,000 12,226,000 13,809,000          
NCM, LLC | Advertising expense | Predecessor                                
Investments                                
Expenses                         6,326,000      
NCM, LLC | Exhibitor services agreement                                
Investments                                
Amounts due to affiliate 1,784,000       2,429,000         1,784,000 2,429,000          
NCM                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 14.96%                 14.96%           4.00%
Amount of excess proportional ownership in equity of investment                   735,795,000            
The company's recorded investment 265,839,000       272,407,000         265,839,000 272,407,000          
Estimated fair market value of the units 275,825,000                 275,825,000            
Price per share (in dollars per share) $ 14.37                 $ 14.37            
Receipt of common units                   2,137,000 26,315,000          
Receipt of common units (in shares)                     1,728,988          
The Company's recorded equity in earnings (losses)                 4,271,000 11,311,000 23,196,000          
Share Price $ 14.37                 $ 14.37            
Financial Condition:                                
Current assets 134,900,000       141,600,000         134,900,000 141,600,000          
Noncurrent assets 546,200,000       557,600,000         546,200,000 557,600,000          
Total assets 681,100,000       699,200,000         681,100,000 699,200,000          
Current liabilities 106,500,000       122,400,000         106,500,000 122,400,000          
Noncurrent liabilities 892,000,000       876,000,000         892,000,000 876,000,000          
Total liabilities 998,500,000       998,400,000         998,500,000 998,400,000          
Stockholders' equity (deficit) (317,400,000)       (299,200,000)         (317,400,000) (299,200,000)          
Liabilities and stockholders' equity 681,100,000       699,200,000         681,100,000 699,200,000          
The company's recorded investment 265,839,000       272,407,000       245,047,000 265,839,000 272,407,000          
Operating Results:                                
Revenues                 178,100,000 394,000,000 462,800,000          
Operating costs and expenses                 144,000,000 297,700,000 299,900,000          
Net earnings (loss)                 34,100,000 96,300,000 162,900,000          
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Balance at the beginning of the period       272,407,000       245,047,000   272,407,000 245,047,000          
Receipt of common units                   2,137,000 26,315,000          
Receipt of excess cash distributions (21,514,000)       (27,453,000)       (10,176,000) (21,514,000) (27,453,000)          
Purchase Price Adjustment                 177,832,000   3,817,000          
Unrealized gain from cash flow hedge                 797,000 1,498,000 1,485,000          
Change in interest gain         5,012,000           5,012,000          
Equity in earnings                 4,271,000 14,446,000 21,149,000          
Equity in loss from amortization of basis difference (3,135,000)       (2,965,000)         (3,135,000) (2,965,000)          
Balance at the end of the period 265,839,000       272,407,000       245,047,000 265,839,000 272,407,000          
Receipt of common units (in shares)                     1,728,988          
Exhibitor services agreement                                
Term of amortization of the exhibitor services agreement (ESA) with NCM                   30 years            
Equity in Loss                                
Change in interest gain         5,012,000           5,012,000          
Equity in loss                 (4,271,000) (14,446,000) (21,149,000)          
Equity in loss from amortization of basis difference (3,135,000)       (2,965,000)         (3,135,000) (2,965,000)          
Equity in (earnings) losses of non-consolidated entities                 (4,271,000) (11,311,000) (23,196,000)          
NCM | NCM tax receivable agreement                                
Investments                                
Amortizable intangible asset 20,900,000                 20,900,000            
NCM | Rave                                
Investments                                
Price per share (in dollars per share)                             $ 15.22  
Share Price                             $ 15.22  
NCM | Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         7,473,000      
Financial Condition:                                
The company's recorded investment                         72,323,000      
Operating Results:                                
Revenues                         231,600,000      
Operating costs and expenses                         167,900,000      
Net earnings (loss)                         63,700,000      
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Balance at the beginning of the period                         71,517,000      
Receipt of excess cash distributions                         (1,701,000)      
Change in interest loss                         (16,000)      
Equity in earnings                         2,523,000      
Balance at the end of the period                         72,323,000      
Equity in Loss                                
Equity in loss                         (2,523,000)      
Equity in (earnings) losses of non-consolidated entities                         (7,473,000)      
NCM | Tranche 2 Investments | Rave                                
Investments                                
Receipt of common units                             26,315,000  
Receipt of common units (in shares)                             1,728,988  
Changes in carrying amount of investment in NCM and equity in earnings of NCM                                
Receipt of common units                             26,315,000  
Receipt of common units (in shares)                             1,728,988  
NCM | Capital units | Predecessor                                
Investments                                
Number of units owned (in shares)                         17,323,782      
NCM | Founding Members | Tranche 2 Investments                                
Investments                                
Number of units issued to Founding Member due to an acquisition (in shares)                   8,688,078            
NCM | NCM, LLC                                
Investments                                
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%                 90.00%            
Period of applicability of the tax receivable agreement to related party from its IPO                   30 years            
AC JV, LLC                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 32.00%                 32.00%           32.00%
The company's recorded investment 6,255,000       4,785,000         6,255,000 4,785,000          
The Company's recorded equity in earnings (losses)                   1,470,000            
Amounts due to affiliate 333,000                 333,000            
Financial Condition:                                
Current assets 10,993,000       806,000         10,993,000 806,000          
Noncurrent assets 22,948,000       24,464,000         22,948,000 24,464,000          
Total assets 33,941,000       25,270,000         33,941,000 25,270,000          
Current liabilities 4,238,000                 4,238,000            
Total liabilities 4,238,000                 4,238,000            
Stockholders' equity (deficit) 29,703,000       25,270,000         29,703,000 25,270,000          
Liabilities and stockholders' equity 33,941,000       25,270,000         33,941,000 25,270,000          
Operating Results:                                
Revenues                   42,102,000            
Operating costs and expenses                   37,669,000            
Net earnings (loss)                   4,433,000            
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                   (1,470,000)            
Advertising (Revenue)                                
Gross exhibition cost on Fathom Events programming                   6,898,000            
AC JV, LLC | Founding Members                                
Investments                                
Interest in non-consolidated affiliates (as a percent)                               32.00%
AC JV, LLC | Founding Members | 5% Promissory Note payable to NCM due 2019                                
Investments                                
Consideration received for spin-off                               25,000,000
Consideration received for spin-off from each founder member                               8,333,000
Stated interest rate (as a percent)                               5.00%
Number of equal installments of interest and principal payments due                               6
Advertising (Revenue)                                
Number of founding members                               3
Aggregate principal amount                               8,333,000
U.S. theatres and IMAX screen                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 50.00%                 50.00%            
Number of U.S. theatres                   2            
Number of IMAX screens                   1            
DCIP                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 29.00%                 29.00%            
The company's recorded investment 62,236,000       45,831,000         62,236,000 45,831,000          
The Company's recorded equity in earnings (losses)                 4,436,000 20,929,000 18,660,000          
Amounts due from affiliate 1,048,000       663,000         1,048,000 663,000          
Term for payment of equipment rent, including scheduled escalations                   12 years            
Deferred rent liability for digital projectors 9,031,000       7,747,000         9,031,000 7,747,000          
Digital equipment rental expense (continuing operations)                 3,338,000 6,639,000 11,077,000          
Financial Condition:                                
Current assets 53,229,000       140,353,000         53,229,000 140,353,000          
Noncurrent assets 1,044,417,000       1,124,517,000         1,044,417,000 1,124,517,000          
Total assets 1,097,646,000       1,264,870,000         1,097,646,000 1,264,870,000          
Current liabilities 24,036,000       34,919,000         24,036,000 34,919,000          
Noncurrent liabilities 821,282,000       1,028,191,000         821,282,000 1,028,191,000          
Total liabilities 845,318,000       1,063,110,000         845,318,000 1,063,110,000          
Stockholders' equity (deficit) 252,328,000       201,760,000         252,328,000 201,760,000          
Liabilities and stockholders' equity 1,097,646,000       1,264,870,000         1,097,646,000 1,264,870,000          
Operating Results:                                
Revenues                 56,851,000 170,724,000 182,659,000          
Operating costs and expenses                 43,052,000 109,430,000 133,700,000          
Net earnings (loss)                 13,799,000 61,294,000 48,959,000          
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                 (4,436,000) (20,929,000) (18,660,000)          
DCIP | Forecast member                                
Investments                                
Capital contributions for projector and installation costs in excess of the cap per system for digital conversations                   68,000            
Capital contributions for projector and installation costs in excess of the cap per system for new build locations                   41,500            
DCIP | Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         4,941,000      
Digital equipment rental expense (continuing operations)                         3,624,000      
Operating Results:                                
Revenues                         71,560,000      
Operating costs and expenses                         55,378,000      
Net earnings (loss)                         16,182,000      
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                         (4,941,000)      
DCDC                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 15.45%                 15.45%            
Open Road Releasing, LLC, operator of ORF                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 50.00%                 50.00%            
The company's recorded investment (9,570,000)       (1,920,000)         (9,570,000) (1,920,000)          
The Company's recorded equity in earnings (losses)                 (10,691,000) (7,650,000) 4,861,000          
Amounts due from affiliate 2,560,000       2,658,000         2,560,000 2,658,000          
Amounts due to affiliate 709,000       1,959,000         709,000 1,959,000          
Gross film exhibition cost on Open Road Films                 5,500,000 13,300,000 12,700,000   1,550,000      
Financial Condition:                                
Current assets 44,498,000       60,431,000         44,498,000 60,431,000          
Noncurrent assets 12,260,000       10,341,000         12,260,000 10,341,000          
Total assets 56,758,000       70,772,000         56,758,000 70,772,000          
Current liabilities 64,080,000       69,530,000         64,080,000 69,530,000          
Noncurrent liabilities 22,582,000       15,918,000         22,582,000 15,918,000          
Total liabilities 86,662,000       85,448,000         86,662,000 85,448,000          
Stockholders' equity (deficit) (29,904,000)       (14,676,000)         (29,904,000) (14,676,000)          
Liabilities and stockholders' equity 56,758,000       70,772,000         56,758,000 70,772,000          
Operating Results:                                
Revenues                 39,701,000 175,374,000 140,350,000          
Operating costs and expenses                 61,083,000 190,602,000 130,628,000          
Net earnings (loss)                 (21,382,000) (15,228,000) 9,722,000          
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                 10,691,000 7,650,000 (4,861,000)          
Advertising (Revenue)                                
Capital commitment 10,000,000                 10,000,000            
Open Road Releasing, LLC, operator of ORF | Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         (6,416,000)      
Operating Results:                                
Revenues                         42,563,000      
Operating costs and expenses                         55,395,000      
Net earnings (loss)                         (12,832,000)      
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                         6,416,000      
Other                                
Investments                                
The company's recorded investment 7,680,000       6,807,000         7,680,000 6,807,000          
The Company's recorded equity in earnings (losses)                 (496,000) 555,000 718,000          
Financial Condition:                                
Current assets 11,649,000       14,069,000         11,649,000 14,069,000          
Noncurrent assets 25,296,000       24,281,000         25,296,000 24,281,000          
Total assets 36,945,000       38,350,000         36,945,000 38,350,000          
Current liabilities 3,538,000       6,301,000         3,538,000 6,301,000          
Total liabilities 3,538,000       6,301,000         3,538,000 6,301,000          
Stockholders' equity (deficit) 33,407,000       32,049,000         33,407,000 32,049,000          
Liabilities and stockholders' equity 36,945,000       38,350,000         36,945,000 38,350,000          
Operating Results:                                
Revenues                 9,128,000 26,887,000 18,517,000          
Operating costs and expenses                 11,088,000 26,072,000 18,546,000          
Net earnings (loss)                 (1,960,000) 815,000 (29,000)          
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                 496,000 (555,000) (718,000)          
Other | Predecessor                                
Investments                                
The Company's recorded equity in earnings (losses)                         1,547,000      
Operating Results:                                
Revenues                         14,680,000      
Operating costs and expenses                         14,820,000      
Net earnings (loss)                         (140,000)      
Equity in Loss                                
Equity in (earnings) losses of non-consolidated entities                         $ (1,547,000)      
Maximum | Investments in non-consolidated affiliates and certain other investments accounted for following the equity method                                
Investments                                
Interest in non-consolidated affiliates (as a percent) 50.00%                 50.00%            
Minimum | NCM | Founding Members                                
Investments                                
Percentage change in the total annual attendance of all the founding members required to cause an earlier common unit adjustment 2.00%                 2.00%