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Segment Information - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Segment Reporting Information [Line Items]      
Long lived assets $ 76,713   $ 78,552
United States      
Segment Reporting Information [Line Items]      
Long lived assets 27,700   29,800
China      
Segment Reporting Information [Line Items]      
Long lived assets 36,500   36,400
Switzerland      
Segment Reporting Information [Line Items]      
Long lived assets $ 2,000   $ 1,700
Geographic Concentration | Consolidated net sales from continuing operations | Switzerland      
Segment Reporting Information [Line Items]      
Percentage of consolidated net sales 3.00% 2.00%