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Intangible Assets (Parenthetical) (Detail)	Sep. 30, 2019 Theatre
Intangible Assets Net Excluding Goodwill [Abstract]
Number of theatres acquired	2

X

- Definition

Number of theatres acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	cnk_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration