Annual report pursuant to Section 13 and 15(d)

Summary of Long-Lived Asset Impairment Losses (Detail)

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Summary of Long-Lived Asset Impairment Losses (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Impaired Long Lived Assets Held And Used [Line Items]      
Impairment [1] $ 16,128    
Total impairment 152,706 $ 57,001 $ 32,372
Investment In NCM      
Impaired Long Lived Assets Held And Used [Line Items]      
Total impairment (92,655)    
U.S. Operating Segment      
Impaired Long Lived Assets Held And Used [Line Items]      
Theatre properties 12,398 36,005 18,597
Theatre operating lease right-of-use assets 13,216 10,457  
Cost method investment 2,500    
Total impairment 120,769 46,462 18,597
U.S. Operating Segment | Investment In NCM      
Impaired Long Lived Assets Held And Used [Line Items]      
Investment [2] 92,655    
International Operating Segment      
Impaired Long Lived Assets Held And Used [Line Items]      
Theatre properties 9,951 8,821 13,775
Theatre operating lease right-of-use assets 5,025 1,718  
Impairment [1] 16,128    
Intangible assets 833    
Total impairment $ 31,937 $ 10,539 $ 13,775
[1] See Note 11 for discussion of impairment evaluations performed during the year ended December 31, 2020.
[2]

See Note 8 for discussion on NCM impairment.