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Treasury Stock and Share Based Awards (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2011 Year Country Theatre Agreement | Sep. 30, 2010
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Assumed forfeiture rate of restricted stock unit awards | 5.00% |
Shares of Restricted Stock Forfeited | 0 |
Compensation expense | $ 2,300 | $ 1,672
Actual cumulative forfeitures (in units) | 9,918 |
Assumed maximum IRR for all grants | 12.50% |
Compensation expense recognition period (in years) | 2 years |
Number of hypothetical shares of common stock | 153,727 |
Treasury Stock and Share Based Awards (Textual) [Abstract] |  |
Number of Restricted Units Vested During Period | 0 |
Common Stock Repurchased Value as Result of Restricted Stock Forfeitures | $ 0.001 |
Market Value Of Restricted Shares | $ 19.60 |
Intrinsic value of options exercised | 699 |
Recognized tax benefit on options exercised | 238 |
Average remaining contractual life of options outstanding | 3 |
Shares of Restricted Stock Granted | 424,436 |
Minimum fair value of restricted stock granted | $ 19.35 |
Maximum fair value of restricted stock granted | $ 20.71 |
Minimum forfeiture rate for restricted stock awards | 0.00% |
Maximum forfeiture rate for restricted stock awards | 5.00% |
Award vesting period range for restricted stock granted to directors | Over one year |
Award vesting period range for restricted stock granted to employees | 4 years |
Compensation expense related to restricted stock awards | 4,832 | 3,507
Unrecognized Compensation expense related to restricted stock awards | 15,447 |
Compensation expense recognition period (in years) | 3 |
Total fair value of vested shares | 5,658 |
Tax benefit recognized on vested shares | 2,188 |
Market value of common stock on the date of grant | $ 19.35 |
Fourth anniversary of grant date | Mar. 31, 2015 |
Percentage of IRR, which is the threshold | 8.50% |
Percentage of IRR, which is the target | 10.50% |
Percentage of IRR, which is the maximum | 12.50% |
IRR Target Label One [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Percentage of restricted stock units vest | 33.00% |
IRR Target Label Two [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Percentage of restricted stock units vest | 66.00% |
IRR Target Label Three [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Percentage of restricted stock units vest | 100.00% |
Restricted Stock Units [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Unrecognized Compensation expense related to outstanding stock options | 6,014 |
Number of hypothetical shares of common stock | 1,037,770 |
Employee Stock Option [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award (Textual) [Abstract] |  |
Unrecognized Compensation expense related to outstanding stock options | $ 0 |

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- Definition The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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