Quarterly report pursuant to Section 13 or 15(d)

Summary of Percentages of Sales by Product line (Detail)

v3.10.0.1
Summary of Percentages of Sales by Product line (Detail)
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Disaggregation Of Revenue [Line Items]        
Percentage of sales 100.00% 100.00% 100.00% 100.00%
Waterlase (laser systems)        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 45.40% 37.80% 41.30% 40.10%
Diodes (laser systems)        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 19.10% 20.80% 21.20% 21.20%
Imaging systems        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 3.50% 10.20% 4.00% 7.80%
Consumables and Other        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 17.40% 16.20% 18.90% 16.00%
Services        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 14.60% 14.70% 14.60% 14.60%
License fees and royalties        
Disaggregation Of Revenue [Line Items]        
Percentage of sales   0.30%   0.30%