XML 47 R72.htm IDEA: XBRL DOCUMENT v3.20.1

Summary of Treasury Stock Activity (Parenthetical) (Detail)	3 Months Ended
	Mar. 31, 2020 $ / shares
Minimum
Schedule of Treasury Stock [Line Items]
Market Value of Restricted Shares	$ 12.30
Maximum
Schedule of Treasury Stock [Line Items]
Market Value of Restricted Shares	$ 32.12

X

- Definition

Market value per share of restricted shares withheld by company related to restricted stock vesting

+ References

No definition available.

+ Details

Name:	cnk_MarketValueOfRestrictedSharesWithheld
Namespace Prefix:	cnk_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Schedule of Treasury Stock [Line Items]

+ References

No definition available.

+ Details

Name:	cnk_ScheduleOfTreasuryStockLineItems
Namespace Prefix:	cnk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: