v3.10.0.1
REVENUE RECOGNITION - Cummulative information (Details)
 1 Months Ended 3 Months Ended 9 Months Ended
Jan. 01, 2018
USD ($)
Jan. 31, 2018
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Sep. 30, 2018
USD ($)
item
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Balance sheet                      
Other long-term assets $ 487,000,000   $ 438,300,000           $ 438,300,000   $ 475,900,000
Deferred revenues and income 391,000,000   293,200,000           293,200,000   401,000,000
Exhibitor services agreement 583,800,000   567,700,000           567,700,000   530,900,000
Accumulated deficit (239,700,000)   (710,600,000)           (710,600,000)   (207,900,000)
Revenues                      
Revenue     1,221,400,000     $ 1,178,700,000     4,047,500,000 $ 3,662,400,000  
Operating costs and expenses                      
Operating costs and expenses     400,500,000     383,200,000     1,236,900,000 1,128,800,000  
Non-cash interest expense related to NCM exhibitor services agreement     10,300,000           31,200,000    
Net earnings (loss)     $ (100,400,000) $ 22,200,000 $ 17,700,000 (42,700,000) $ (176,500,000) $ 8,400,000 $ (60,500,000) (210,800,000)  
Revenues                      
Percentage of revenue related to sales of gift cards and packaged tickets deferred   100.00%                  
Period over which total amount of breakage for that current month's sales in proportion to the pattern of actual redemptions is recognized                 24 months    
Period during which breakage for packaged tickets continues to be recognized as redemption if not used after being purchased                 18 months    
Non-redemption rate     10.00%           10.00%    
Film Exhibition Costs                      
Increase to accumulated deficit         $ 31,800,000            
Customer Frequency Program                      
Insider tier, points earned per dollar spent | item                 20    
Insider tier, annual membership fee                 $ 15.00    
Premiere tier, points earned per dollar spent | item                 100    
Premiere tier, number of points for virtual reward | item                 5,000    
Premiere tier, virtual award                 $ 5.00    
Redemption period                 9 months    
Admissions                      
Revenues                      
Revenue     $ 751,400,000     753,500,000     $ 2,522,700,000 2,332,400,000  
Food and beverage                      
Revenues                      
Revenue     384,800,000     361,400,000     1,236,400,000 1,133,100,000  
Total other theatre                      
Revenues                      
Revenue     85,200,000     $ 63,800,000     288,400,000 $ 196,900,000  
Calculated under Revenue Guidance in Effect before Topic 606 [Member]                      
Balance sheet                      
Other long-term assets                     475,900,000
Deferred revenues and income                     401,000,000
Exhibitor services agreement                     530,900,000
Accumulated deficit                     (207,900,000)
Revenues                      
Revenue     1,210,500,000           4,012,700,000    
Operating costs and expenses                      
Operating costs and expenses     395,200,000           1,216,400,000    
Net earnings (loss)     (95,700,000)           (43,600,000)    
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Admissions                      
Revenues                      
Revenue     751,700,000           2,523,700,000    
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Food and beverage                      
Revenues                      
Revenue     384,900,000           1,236,700,000    
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Total other theatre                      
Revenues                      
Revenue     73,900,000           252,300,000    
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]                      
Balance sheet                      
Other long-term assets                     11,100,000
Deferred revenues and income                     (10,000,000)
Exhibitor services agreement                     52,900,000
Accumulated deficit                     $ (31,800,000)
Revenues                      
Revenue     10,900,000           34,800,000    
Operating costs and expenses                      
Operating costs and expenses     5,300,000           20,500,000    
Non-cash interest expense related to NCM exhibitor services agreement     10,300,000           31,200,000    
Net earnings (loss)     (4,700,000)           (16,900,000)    
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Admissions                      
Revenues                      
Revenue     (300,000)           (1,000,000)    
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Food and beverage                      
Revenues                      
Revenue     (100,000)           (300,000)    
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Total other theatre                      
Revenues                      
Revenue     $ 11,300,000           $ 36,100,000    
Exhibitor Services Agreement                      
Film Exhibition Costs                      
Increase to accumulated deficit 52,900,000                    
Income tax effect $ 0                    
Minimum                      
Revenues                      
Breakage rate for gift cards (as a percent)                 12.00%    
Film Exhibition Costs                      
Discount rate                 650.00%    
Maximum                      
Revenues                      
Breakage rate for gift cards (as a percent)                 18.00%    
Film Exhibition Costs                      
Discount rate                 850.00%