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Summary of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Line Items] |  |  |  |
Beginning Balance | [1] | $ 1,284,079 |  | $ 1,262,963
Acquisitions of theatres |  | 7,204 | [2] | 23,089
Foreign currency translation adjustments |  | (14,959) |  | (1,973)
Ending Balance | [1] | 1,276,324 |  | 1,284,079
U.S. Operating Segment |  |  |  |
Goodwill [Line Items] |  |  |  |
Beginning Balance | [1] | 1,174,041 |  | 1,164,163
Acquisitions of theatres |  |  |  | 9,878
Ending Balance | [1] | 1,174,041 |  | 1,174,041
International Operating Segment |  |  |  |
Goodwill [Line Items] |  |  |  |
Beginning Balance | [1] | 110,038 |  | 98,800
Acquisitions of theatres |  | 7,204 | [2] | 13,211
Foreign currency translation adjustments |  | (14,959) |  | (1,973)
Ending Balance | [1] | $ 102,283 |  | $ 110,038
[1] | Balances are presented net of accumulated impairment losses of $214,031 for the U.S. operating segment and $27,622 for the international operating segment.
[2] | Amount represents preliminary purchase price allocation for theatres acquired in Brazil.

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