Annual report pursuant to Section 13 and 15(d)

Segment and Geographic Information - Net Sales by Country (Details)

v3.19.1
Segment and Geographic Information - Net Sales by Country (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1) $ 355,794 $ 350,175 $ 349,233 $ 327,616 $ 318,091 $ 306,576 $ 301,568 $ 273,946 $ 1,382,818 $ 1,200,181 $ 757,338
Property, plant and equipment, net 495,280       405,316       $ 495,280 405,316  
Net sales | Sales risk                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Number of customers                 1    
Concentration Risk, Geographic                 No    
Net sales (1)                 $ 184,300 133,500 104,400
Net sales | Geographic risk                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Threshold for Disclosure Percentage                 3.00%    
Property, Plant and Equipment | Geographic risk                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Threshold for Disclosure Percentage                 1.35552%    
United States                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 $ 292,980 233,133 198,250
Property, plant and equipment, net 57,095       49,530       57,095 49,530  
Japan                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 178,502 170,282 3,565
Property, plant and equipment, net 89,602       79,855       89,602 79,855  
THAILAND                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Property, plant and equipment, net 82,389       74,100       82,389 74,100  
China                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 173,148 163,016 71,223
Property, plant and equipment, net 45,815       36,396       45,815 36,396  
Italy                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 15,551 17,905 15,376
Property, plant and equipment, net 35,197       39,398       35,197 39,398  
Hungary                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 12,245 13,254 18,856
Mexico                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 44,267 23,915 22,424
Property, plant and equipment, net 121,147       62,503       121,147 62,503  
Other                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 1,281 2,278 4,131
Property, plant and equipment, net 8,977       9,136       8,977 9,136  
Portugal                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Property, plant and equipment, net 31,872       29,073       31,872 29,073  
Macedonia                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Property, plant and equipment, net 12,906       13,723       12,906 13,723  
BULGARIA                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Property, plant and equipment, net 5,480       5,597       5,480 5,597  
Sweden                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Property, plant and equipment, net 4,800       6,005       4,800 6,005  
Total Non-United States                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 1,089,838 967,048 559,088
Property, plant and equipment, net $ 438,185       $ 355,786       438,185 355,786  
Hong Kong                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 188,102 169,073 121,813
Germany                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 124,805 105,548 104,755
Europe                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 76,149 64,248 63,863
Taiwan                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 88,853 78,728 9,147
Asia Pacific                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 47,233 36,647 26,878
United Kingdom                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 42,472 37,038 33,837
Netherlands                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 44,065 39,684 32,478
Malaysia                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 33,748 28,165 15,177
Singapore                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Net sales (1)                 $ 19,417 $ 17,267 $ 15,565
Minimum | Net sales | Sales risk                      
Net sales and property, plant and equipment, goodwill, intangible assets                      
Concentration risk, percentage                 0.00%