Quarterly report pursuant to Section 13 or 15(d)

Summary of Percentages of Sales by Product line (Detail)

v3.8.0.1
Summary of Percentages of Sales by Product line (Detail)
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Disaggregation Of Revenue [Line Items]    
Percentage of sales 100.00% 100.00%
Waterlase (laser systems)    
Disaggregation Of Revenue [Line Items]    
Percentage of sales 35.00% 39.90%
Diodes (laser systems)    
Disaggregation Of Revenue [Line Items]    
Percentage of sales 22.00% 22.00%
Imaging systems    
Disaggregation Of Revenue [Line Items]    
Percentage of sales 5.80% 5.70%
Consumables and Other    
Disaggregation Of Revenue [Line Items]    
Percentage of sales 20.30% 15.60%
Services    
Disaggregation Of Revenue [Line Items]    
Percentage of sales 16.90% 16.50%
License fees and royalties    
Disaggregation Of Revenue [Line Items]    
Percentage of sales   0.30%