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Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Oct. 01, 2014
Schedule of Intangible Assets Disclosure [Line Items]        
Intangible asset impairment $ 3,384   $ 3,384  
Minimum        
Schedule of Intangible Assets Disclosure [Line Items]        
Remaining useful lives of trade names   10 years    
Maximum        
Schedule of Intangible Assets Disclosure [Line Items]        
Remaining useful lives of trade names   15 years    
Fair Value, Inputs, Level 3 | Trade Names | Minimum        
Schedule of Intangible Assets Disclosure [Line Items]        
Indefinite-lived intangible assets impairment, discount rate       14.00%
Indefinite-lived intangible assets impairment, growth rate       2.50%
Fair Value, Inputs, Level 3 | Trade Names | Maximum        
Schedule of Intangible Assets Disclosure [Line Items]        
Indefinite-lived intangible assets impairment, discount rate       15.50%
Indefinite-lived intangible assets impairment, growth rate       3.00%