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 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 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 42.90% 42.40% 39.20% 41.30%
Diodes (laser systems)        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 22.30% 20.70% 22.20% 21.30%
Imaging systems        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 3.10% 7.50% 4.30% 6.70%
Consumables and Other        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 18.90% 16.30% 19.60% 15.90%
Services        
Disaggregation Of Revenue [Line Items]        
Percentage of sales 12.80% 12.80% 14.70% 14.50%
License fees and royalties        
Disaggregation Of Revenue [Line Items]        
Percentage of sales   0.30%   0.30%