Annual report pursuant to Section 13 and 15(d)

Summary of Activity for Each of Company's Other Investments (Detail)

v3.20.4
Summary of Activity for Each of Company's Other Investments (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]      
Equity in income (loss) $ (38,745,000) $ 41,870,000 $ 39,242,000
Cash distributions received (25,430,000) (53,366,000) (30,143,000)
Digital Cinema Implementation Partners      
Schedule Of Equity Method Investments [Line Items]      
Cash distributions received [1] (10,383,000) (23,696,000) (5,799,000)
Other 12,915,000    
Other Affiliates      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 155,285,000 156,766,000 120,045,000
Cash contributions 50,000   22,076,000
Equity in income (loss) (28,118,000) 27,278,000 25,400,000
Equity in comprehensive income (loss)   (141,000) (139,000)
Cash distributions received (11,261,000) (27,422,000) (7,938,000)
Non-cash distribution received [2] (89,804,000)    
Other (2,426,000) [3] (1,196,000) [4] (2,678,000)
Investments, ending balance 23,726,000 155,285,000 156,766,000
Other Affiliates | Digital Cinema Implementation Partners      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 124,696,000 125,252,000 106,215,000
Cash contributions 50,000   2,076,000
Equity in income (loss) (24,559,000) 23,281,000 22,899,000
Equity in comprehensive income (loss)   (141,000) (139,000)
Cash distributions received (10,383,000) (23,696,000) (5,799,000)
Non-cash distribution received [2] (89,804,000)    
Investments, ending balance   124,696,000 125,252,000
Other Affiliates | AC JV, LLC      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 5,022,000 5,266,000 5,916,000
Equity in income (loss) (1,277,000) 3,276,000 1,270,000
Cash distributions received   (3,520,000) (1,920,000)
Investments, ending balance 3,745,000 5,022,000 5,266,000
Other Affiliates | Digital Cinema Distribution Coalition      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 3,169,000 2,255,000 3,598,000
Equity in income (loss) (1,036,000) 1,120,000 1,313,000
Cash distributions received (878,000) (206,000) (219,000)
Other     (2,437,000)
Investments, ending balance 1,255,000 3,169,000 2,255,000
Other Affiliates | FE Concepts, LLC      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 19,519,000 19,918,000.00 104,000
Cash contributions     20,000,000
Equity in income (loss) (1,246,000) (399,000) (82,000)
Other     (104,000)
Investments, ending balance 18,273,000 19,519,000 19,918,000.00
Other Affiliates | Other Investments      
Schedule Of Equity Method Investments [Line Items]      
Investments, beginning balance 2,879,000 4,075,000 4,212,000
Other (2,426,000) [3] (1,196,000) [4] (137,000)
Investments, ending balance $ 453,000 $ 2,879,000 $ 4,075,000
[1] See discussion of cash distributions from DCIP, which were recorded as a reduction of the Company’s investment in DCIP, at Note 9.  These distributions are reported entirely within the U.S. operating segment.
[2]

Consists of projectors distributed to the Company from DCIP as discussed below.
[3] Consists primarily of the impairment of a cost method investment (see Note 11 for discussion of impairments recorded) and mark-to-market adjustment on an investment in marketable securities.
[4] Other activity for DCDC for the year ended December 31, 2018 consisted of returns of capital originally contributed by the Company.  Other activity for the year ended December 31, 2019 consists primarily of and mark-to-market adjustment on an investment in marketable securities.