Treasury Stock and Share-Based Awards - Summary of Restricted Stock and Restricted Stock Unit Award Activity (Detail) - USD ($) shares in Thousands		9 Months Ended
		Sep. 30, 2024		Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 2,800,000
Restricted Stock (Member)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance stock units that vested during the period		890
Fair value of performance stock units that vested during the period		$ 14,800,000		$ 9,400,000
Compensation expense		13,300,000		12,500,000
Income tax expense related to performance stock units		2,100,000		$ 900,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated remaining expense	[1]	$ 20,100,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance stock units that vested during the period	[2]	100		100
Fair value of performance stock units that vested during the period		$ 2,100,000		$ 1,500,000
Accumulated dividends paid upon vesting of performance stock units		100,000		200,000
Compensation expense		10,800,000		6,400,000
Income tax expense related to performance stock units		(1,200,000)		(500,000)
Cinemark Holdings Inc [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		1,000,000
Cinemark Holdings Inc [Member] | Restricted Stock (Member)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of performance stock units that vested during the period		1,400,000		1,300,000
Compensation expense				900,000
Income tax expense related to performance stock units		300,000		300,000
Cinemark Holdings Inc [Member] | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated remaining expense		1
Cinemark Partners Second [Member] | Restricted Stock (Member)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of performance stock units that vested during the period		12,300,000	[3]	8,100,000
Compensation expense		13,400,000		11,600,000	[3]
Income tax expense related to performance stock units		1,800,000		$ 600,000
Cinemark Partners Second [Member] | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated remaining expense	[1]	$ 19,100,000

[1] The weighted average period over which this remaining compensation expense will be recognized by both Holdings and CUSA is approximately 1.5 years.

[2] Compensation expense for the nine months ended September 30, 2024 includes approximately $2.8 related to a change in the most likely performance metrics outcome estimated to be achieved for the 2023 and 2024 grants.

[3] Compensation expense for the nine months ended September 30, 2024 includes approximately $0.6 related to a portion of the short-term field incentive compensation plan for 2024 to be settled in restricted stock.