Annual report pursuant to Section 13 and 15(d)

Segment Information - Additional Information (Detail)

v2.4.0.6
Segment Information - Additional Information (Detail) (USD $)
Dec. 31, 2012
Country
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Segment Reporting Information [Line Items]        
Number of countries where the products are sold 88      
Total assets for the Company's Segment $ 1,703,944,000 $ 1,446,209,000    
Goodwill allocated to the Company's Segment 105,490,000 105,490,000 102,900,000  
Net property, plant and equipment located in the U.S. and in all foreign countries 242,886,000 193,703,000    
Deferred tax assets related to U.S.and foreign countries 119,800,000 112,200,000    
Cash and cash equivalents 333,534,000 258,775,000 190,550,000 150,801,000
Total amount of cash held by foreign subsidiaries maintained or invested in U.S. dollars 6,900,000 9,200,000    
Foreign Subsidiary [Member]
        
Segment Reporting Information [Line Items]        
Cash and cash equivalents 321,300,000 246,000,000    
Primary Reporting Segment [Member]
        
Segment Reporting Information [Line Items]        
Total assets for the Company's Segment 1,587,000,000 1,357,400,000    
Goodwill allocated to the Company's Segment 102,400,000 102,400,000    
China [Member]
        
Segment Reporting Information [Line Items]        
Total assets for the Company's Segment 116,900,000 88,800,000    
Goodwill allocated to the Company's Segment 3,100,000 3,100,000    
U.S. [Member]
        
Segment Reporting Information [Line Items]        
Net property, plant and equipment located in the U.S. and in all foreign countries 170,900,000 144,200,000    
Deferred tax assets related to U.S.and foreign countries 68,400,000 65,400,000    
Foreign Countries [Member]
        
Segment Reporting Information [Line Items]        
Net property, plant and equipment located in the U.S. and in all foreign countries 71,900,000 49,500,000    
Deferred tax assets related to U.S.and foreign countries $ 51,400,000 $ 46,800,000