Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Summary of Activity for Each of Company's Other Investments (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   $ 98,317    
Equity in income of affiliates   35,985 $ 31,962 $ 28,126
Cash distributions received [1]   (25,973) (21,916) (19,027)
Investments, ending balance   120,045 98,317  
AC JV, LLC        
Schedule Of Equity Method Investments [Line Items]        
Cash contributions $ 268      
Other Affiliates        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   98,317 94,973 77,658
Cash contributions   3,715 1,132 3,711
Equity in income of affiliates   26,435 22,615 19,616
Equity in comprehensive income (loss)   248 89 (384)
Unrealized holding loss       (1,529)
Sale of investment in Taiwan [2]       (1,383)
Sale of investment [3]     (12,900)  
Cash distributions received   (8,615) (7,698) (2,647)
Other   (55) 106 (69)
Investments, ending balance   120,045 98,317 94,973
Other Affiliates | Digital Cinema Implementation Partners        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   87,819 71,579 51,277
Cash contributions   1,112 717 3,211
Equity in income of affiliates   22,900 21,434 18,522
Equity in comprehensive income (loss)   248 89 (384)
Cash distributions received   (5,864) (6,000) (1,047)
Investments, ending balance   106,215 87,819 71,579
Other Affiliates | RealD        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance     12,900 14,429
Unrealized holding loss       (1,529)
Sale of investment [3]     (12,900)  
Investments, ending balance       12,900
Other Affiliates | AC JV, LLC        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   5,980 7,269 7,899
Equity in income of affiliates   2,336 311 970
Cash distributions received   (2,400) (1,600) (1,600)
Investments, ending balance   5,916 5,980 7,269
Other Affiliates | Digital Cinema Distribution Coalition        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   2,750 2,562 2,438
Equity in income of affiliates   1,199 870 124
Cash distributions received   (351) (98)  
Other     (584)  
Investments, ending balance   3,598 2,750 2,562
Other Affiliates | Other Investment        
Schedule Of Equity Method Investments [Line Items]        
Investments, beginning balance   1,768 663 1,615
Cash contributions   2,603 415 500
Sale of investment in Taiwan [2]       (1,383)
Other   (55) 690 (69)
Investments, ending balance   $ 4,316 $ 1,768 $ 663
[1] Includes distributions received from equity investees that were recorded as a reduction of the respective investment balances.
[2] The Company sold its investment in a Taiwan joint venture for $2,634, resulting in a gain of $1,251, which is included in loss on sale of assets and other for the year ended December 31, 2015.
[3] See further discussion of the sale of the investment held by the Company under RealD, Inc. below.