Treasury Stock and Share Based Awards - Summary of Restricted Stock and Restricted Stock Unit Award Activity (Parenthetical) (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Restricted Stock (Member)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 8.3	$ 8.5
Performance Shares (Member)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 4.2	2.6
Cinemark Partners Second [Member] \| Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted average period remaining	2 years
Cinemark Partners Second [Member] \| Restricted Stock (Member)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Compensation expense	$ 7.7	$ 8.0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI https://asc.fasb.org/extlink&oid=124504833&loc=d3e7104-158389

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