Quarterly report pursuant to Section 13 or 15(d)

Summary of Recognition of Revenue Related To Deferred Revenue (Detail)

v3.21.2
Summary of Recognition of Revenue Related To Deferred Revenue (Detail)
$ in Thousands
Jun. 30, 2021
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period
N C M Screen Advertising Advances  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue remaining performance obligation, amount $ 350,362 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue remaining performance obligation, amount $ 8,819 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue remaining performance obligation, amount $ 9,428 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue remaining performance obligation, amount $ 10,081 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue remaining performance obligation, amount $ 10,780 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Revenue remaining performance obligation, amount $ 11,528 [1]
N C M Screen Advertising Advances | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-07-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period
Revenue remaining performance obligation, amount $ 299,726 [1]
[1] Amounts are net of the estimated interest to be accrued for the periods presented.  See discussion of significant financing component below.