Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
Summary of Recognition of Revenue Related To Deferred Revenue (Detail) - N C M Screen Advertising Advances
$ in Millions
Mar. 31, 2022
USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Remaining performance obligation $ 343.8 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Remaining performance obligation $ 9.3 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 2 years
Remaining performance obligation $ 9.9 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Remaining performance obligation $ 10.6 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Remaining performance obligation $ 11.3 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year
Remaining performance obligation $ 12.1 [1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-04-01  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period
Remaining performance obligation $ 290.6 [1]
[1] Amounts are net of the estimated interest to be accrued for the periods presented. See discussion of significant financing component below.