Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies - Additional Information (Detail)

v3.3.1.900
Organization and Summary of Significant Accounting Policies - Additional Information (Detail)
$ in Millions
 12 Months Ended
Dec. 31, 2015
USD ($)
a
Dec. 31, 2014
USD ($)
Significant Accounting Policies [Line Items]    
Workers compensation liability | $ $ 2.6 $ 2.7
Minimum    
Significant Accounting Policies [Line Items]    
Estimated life of property, plant and equipment 3 years  
Maximum    
Significant Accounting Policies [Line Items]    
Estimated life of property, plant and equipment 25 years  
New Accounting Pronouncement, Early Adoption, Effect    
Significant Accounting Policies [Line Items]    
Deferred tax assets, current | $   $ (2.6)
Ingleside, Texas    
Significant Accounting Policies [Line Items]    
Area of real estate property | a 212  
Aransas Pass, Texas    
Significant Accounting Policies [Line Items]    
Area of real estate property | a 160