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Impairment of Property and Equipment - Additional Information (Detail)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Sep. 30, 2014
USD ($)
Dec. 31, 2015
USD ($)
Theatre
Dec. 31, 2014
USD ($)
Theatre
Dec. 31, 2013
USD ($)
Property, Plant and Equipment [Line Items]                  
Impairment charges $ 4,271 $ 1,388 $ 481 $ 1,389 $ 1,655 $ 1,198 $ 7,529 $ 3,212 $ 3,726
Estimated aggregate fair value of long-lived assets impaired             15,200 3,939 4,823
Impairment charges on theaters using valuation inputs             3,412 784 2,758
Impairment charges on theaters impaired on prior years using valuation inputs             3,486 $ 2,428 361
Impairment Of Long Lived Assets Held For Use Decline in Market Value             $ 631   $ 750
Number of operating theaters where competition entered the market | Theatre             1 1  
Minimum [Member]                  
Property, Plant and Equipment [Line Items]                  
Projects future attendance fluctuations, percent             (10.00%)    
Risk-adjusted of return, discount rate             10.00%    
Maximum [Member]                  
Property, Plant and Equipment [Line Items]                  
Projects future attendance fluctuations, percent             10.00%    
Risk-adjusted of return, discount rate             15.00%