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Description of Business, Basis of Consolidation and Significant Accounting Policies - Additional Information (Detail)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
Derivative
Sep. 30, 2012
USD ($)
Jun. 30, 2012
USD ($)
Mar. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Sep. 30, 2011
USD ($)
Jun. 30, 2011
USD ($)
Mar. 31, 2011
USD ($)
Dec. 31, 2012
USD ($)
Derivative
Dec. 31, 2012
EUR (€)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2012
Prepaid expenses
USD ($)
Dec. 31, 2012
Other assets
USD ($)
Dec. 31, 2012
Property plant and equipment
USD ($)
Dec. 31, 2012
Unvested Common Stock
USD ($)
Employee
Dec. 31, 2012
Unvested Common Stock
Modification
USD ($)
Dec. 31, 2012
Restatement Adjustment
USD ($)
Dec. 31, 2012
Stock Option
USD ($)
Dec. 31, 2011
Stock Option
USD ($)
Dec. 31, 2010
Stock Option
USD ($)
Dec. 31, 2012
Restricted Stock
USD ($)
Dec. 31, 2011
Restricted Stock
USD ($)
Dec. 31, 2010
Restricted Stock
USD ($)
Dec. 31, 2012
Stock Options
Dec. 31, 2012
Building
Minimum
Dec. 31, 2012
Building
Maximum
Dec. 31, 2012
Machinery and equipment
Minimum
Dec. 31, 2012
Machinery and equipment
Maximum
Dec. 31, 2012
Office furniture, fixtures and equipment
Minimum
Dec. 31, 2012
Office furniture, fixtures and equipment
Maximum
Dec. 31, 2012
Automotive equipment
Minimum
Dec. 31, 2012
Automotive equipment
Maximum
Dec. 31, 2012
Construction in progress
Minimum
Dec. 31, 2012
Construction in progress
Maximum
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]                                                                      
Advertising expense                 $ 2,680   $ 2,095 $ 2,530                                              
Property, Plant and Equipment Useful Life                                                   10 years 30 years 3 years 15 years 3 years 10 years 3 years 6 years 3 years 15 years
Derivative euro exchange forward contract                   4,500                                                  
Notional amount of interest rate swap contract 44,250               44,250                                                    
Number of Interest rate swap contract outstanding 1               1 1                                                  
Other comprehensive income expected to be reclassified to earnings                 (689)                                                    
Prior period reclassification increase (decrease)                         1,856 1,880 (3,736)                                        
Net sales 104,262 89,836 84,837 87,255 81,776 73,209 80,062 66,033 366,190   301,080 226,859           3,349                                  
Cost of sales                 205,065   178,012 140,538           3,349                                  
Deferred income tax assets 4,877       3,417       4,877   3,417             (3,417)                                  
Deferred income tax liabilities 19,163       18,589       19,163   18,589             (3,417)                                  
Reduction in share based compensation expense                 91                                                    
Forfeited percentage of stock                                     1.10%     9.70%                          
Nonvested unamortized stock-based compensation expense                                     840     3,697                          
Nonvested unamortized stock-based compensation expense, contractual term                                           2 years 3 months 18 days     1 year                    
Weighted average grant-date fair values of options in period                                     $ 0.00 $ 6.62 $ 3.78 $ 21.51 $ 12.30 $ 7.59                      
Retired number of employees                               2                                      
Total common stock,unvested                               13,334                                      
Common stock value per share                               $ 7.50 $ 23.55                                    
Additional share based compensation                                 $ 314