Quarterly report pursuant to Section 13 or 15(d)

Summary of Revenues Disaggregated Based on Timing of Revenue Recognition (Detail)

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Summary of Revenues Disaggregated Based on Timing of Revenue Recognition (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disaggregation of Revenue [Line Items]        
Total revenues $ 294,652 $ 8,974 $ 409,013 $ 552,590
U.S. Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues 269,261 8,155 366,350 [1] 435,598 [1]
International Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues 25,391 819 42,663 116,992
Goods and Services Transferred at a Point in Time        
Disaggregation of Revenue [Line Items]        
Total revenues 273,328 166 368,174 502,860
Goods and Services Transferred at a Point in Time | U.S. Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues 249,427 89 329,961 [1] 401,531 [1]
Goods and Services Transferred at a Point in Time | International Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues 23,901 77 38,213 101,329
Goods and Services Transferred Over Time        
Disaggregation of Revenue [Line Items]        
Total revenues 21,324 [2] 8,808 40,839 [2] 49,730
Goods and Services Transferred Over Time | U.S. Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues 19,834 [2] 8,066 36,389 [1],[2] 34,067 [1]
Goods and Services Transferred Over Time | International Operating Segment        
Disaggregation of Revenue [Line Items]        
Total revenues $ 1,490 [2] $ 742 $ 4,450 [2] $ 15,663
[1] U.S. segment revenues include eliminations of intercompany transactions with the international operating segment.  See Note 17 for additional information on intercompany eliminations.
[2] Amount includes amortization of NCM screen advertising advances.  See Deferred Revenues below.