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Investments - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Feb. 29, 2012
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Grupo Vasconia S.A.B.
Jun. 30, 2011
Grupo Vasconia S.A.B.
Jun. 30, 2012
Grupo Vasconia S.A.B.
Jun. 30, 2011
Grupo Vasconia S.A.B.
Dec. 31, 2011
Grupo Vasconia S.A.B.
Jun. 30, 2012
Grupo Vasconia S.A.B.
Transaction 01
Jun. 30, 2011
Grupo Vasconia S.A.B.
Transaction 01
Jun. 30, 2012
Grupo Vasconia S.A.B.
Transaction 02
Jun. 30, 2011
Grupo Vasconia S.A.B.
Transaction 02
Jun. 30, 2012
GS Internacional S/A
Jun. 30, 2012
GS Internacional S/A
Schedule of Equity Method Investments [Line Items]                                
Percentage of ownership in equity method investment           30.00%   30.00%             40.00% 40.00%
Exchange rate at period end - MXN to USD           13.47   13.47   13.95            
Average daily exchange rate for period - MXN to USD           13.51 11.74       13.24 11.91 13.29 11.92    
Increase in equity method investment               $ 200,000 $ 1,000,000              
Due from related party           84,000   84,000   216,000            
Cash dividend received           416,000                    
Equity in earnings, net of taxes   523,000 859,000 921,000 1,324,000 600,000 500,000 1,100,000 1,000,000           100,000 200,000
Equity method investment consideration, remaining amount                             2,600,000 2,600,000
Joint venture to distribute Mikasa $ 500,000