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Summary of Activity for Each of Company's Other Investments (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | $ 155,285 |
Cash distributions received |  | (16,606) | $ (14,342)
Equity in earnings |  | 8,486 | 10,404
Investments, ending balance |  | 151,232 |
Digital Cinema Implementation Partners |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Cash distributions received | [1] | (5,161) | $ (5,218)
Other Affiliates |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 155,285 |
Cash distributions received |  | (6,039) |
Equity in earnings |  | 1,960 |
Other |  | 26 |
Investments, ending balance |  | 151,232 |
Other Affiliates | Digital Cinema Implementation Partners |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 124,696 |
Cash distributions received |  | (5,161) |
Equity in earnings |  | 1,249 |
Other |  | 50 |
Investments, ending balance |  | 120,834 |
Other Affiliates | AC JV, LLC |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 5,022 |
Equity in earnings |  | 740 |
Investments, ending balance |  | 5,762 |
Other Affiliates | Digital Cinema Distribution Coalition |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 3,169 |
Cash distributions received |  | (878) |
Equity in earnings |  | 194 |
Investments, ending balance |  | 2,485 |
Other Affiliates | FE Concepts, LLC |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 19,519 |
Equity in earnings |  | (223) |
Investments, ending balance |  | 19,296 |
Other Affiliates | Other Investments |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |
Investments, beginning balance |  | 2,879 |
Other |  | (24) |
Investments, ending balance |  | $ 2,855 |
[1] | See discussion of cash distributions from DCIP, which were recorded as a reduction of the Company’s investment in DCIP, at Note 10. These distributions are reported entirely within the U.S. operating segment.

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