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Summary of Treasury Stock Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |
Beginning Balance, Shares | 3,694,935 us-gaap_TreasuryStockShares |  | 3,553,085 us-gaap_TreasuryStockShares |  | 3,391,592 us-gaap_TreasuryStockShares |
Restricted stock forfeitures | 25,947 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited | [1] | 22,653 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited | [1] | 14,423 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited | [1]
Restricted stock withholdings | 336,253 cnk_RestrictedStockWithholdings | [2] | 119,197 cnk_RestrictedStockWithholdings | [2] | 147,070 cnk_RestrictedStockWithholdings | [2]
Ending Balance, Shares | 4,057,135 us-gaap_TreasuryStockShares |  | 3,694,935 us-gaap_TreasuryStockShares |  | 3,553,085 us-gaap_TreasuryStockShares |
Beginning Balance, Cost | $ 51,946 us-gaap_TreasuryStockValue |  | $ 48,482 us-gaap_TreasuryStockValue |  | $ 45,219 us-gaap_TreasuryStockValue |
Restricted stock forfeitures | 0 us-gaap_RestrictedStockAwardForfeitures | [1] | 0 us-gaap_RestrictedStockAwardForfeitures | [1] | 0 us-gaap_RestrictedStockAwardForfeitures | [1]
Restricted stock withholdings | 9,861 cnk_CostOfSharesWithheldByCompanyToCoverTaxWithholdingsRelatedToRestrictedStockVesting | [2] | 3,464 cnk_CostOfSharesWithheldByCompanyToCoverTaxWithholdingsRelatedToRestrictedStockVesting | [2] | 3,263 cnk_CostOfSharesWithheldByCompanyToCoverTaxWithholdingsRelatedToRestrictedStockVesting | [2]
Ending Balance, Cost | $ 61,807 us-gaap_TreasuryStockValue |  | $ 51,946 us-gaap_TreasuryStockValue |  | $ 48,482 us-gaap_TreasuryStockValue |
[1] | The Company repurchased forfeited and canceled restricted shares at a cost of $0.001 per share in accordance with the Company's Amended and Restated 2006 Long Term Incentive Plan.
[2] | The Company withheld restricted shares as a result of the election by certain employees to satisfy their tax liabilities upon vesting in restricted stock. The Company determined the number of shares to be withheld based upon market values that ranged from $22.40 to $30.83 per share.

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- Definition Cost of shares withheld by the company to cover tax withholdings related to restricted stock and restricted stock unit vesting. + References No definition available. + Details
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- Definition Number of restricted shares withheld by the company to cover tax withholdings related to restricted stock and restricted stock unit vesting. + References No definition available. + Details
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- Details
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- Definition The total value of forfeitures related to restricted stock awards forfeited during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Number of shares related to Restricted Stock Award forfeited during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 + Details
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