Net (Loss) Income Per Share - Summary of Basic Net Loss Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator for basic earnings per share:
Net (loss) income	$ (1,445)	$ 3,222	$ (1,054)	$ 58
Basic earnings per share:
Weighted average shares	24,531	23,021	24,498	23,046
Less: restricted stock issued	(67)	(149)	(105)	(199)
Denominator for basic earnings per share:	24,464	22,872	24,393	22,847
Effect of dilutive shares:
Stock options		332		326
Restricted stock awards		279		290
Dilutive potential common shares		611		616
Denominator for diluted earnings per share:
Adjusted weighted average shares	24,464	23,483	24,393	23,463
Basic and Diluted (loss) income per share attributable to Carmike stockholders	$ (0.06)	$ 0.14	$ (0.04)

Incremental common shares attributable to share based payment arrangements restricted stock awards.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of shares of restricted stock determined by relating the portion of time within a reporting period that restricted shares have been outstanding to the total time in that period. Restricted shares are subject to sales, contractual, regulatory or other restrictions that prevent or inhibit the holder from freely disposing of them before the restriction ends.

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