Quarterly report pursuant to Section 13 or 15(d)

Summary of Activity for Each of Investments (Detail)

v3.7.0.1
Summary of Activity for Each of Investments (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Dec. 31, 2013
Mar. 31, 2017
Mar. 31, 2016
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   $ 98,317  
Cash distributions [1]   (12,049) $ (8,086)
Equity in income   10,060 7,142
Equity in other comprehensive income   198 $ (322)
Investments, ending balance   100,190  
Other Affiliates      
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   98,317  
Cash contributions   228  
Cash distributions   (5,212)  
Equity in income   6,819  
Equity in other comprehensive income   198  
Other   (160)  
Investments, ending balance   100,190  
Other Affiliates | Digital Cinema Implementation Partners      
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   87,819  
Cash contributions   228  
Cash distributions   (5,212)  
Equity in income   5,375  
Equity in other comprehensive income   198  
Investments, ending balance   88,408  
Other Affiliates | AC JV, LLC      
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   5,980  
Cash contributions $ 268    
Equity in income   858  
Investments, ending balance   6,838  
Other Affiliates | Digital Cinema Distribution Coalition      
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   2,750  
Equity in income   586  
Investments, ending balance   3,336  
Other Affiliates | Other Investments      
Schedule of Equity Method Investments [Line Items]      
Investments, beginning balance   1,768  
Other   (160)  
Investments, ending balance   $ 1,608  
[1] Includes cash distributions received from equity investees that were recorded as a reduction of the respective investment balances.