Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Sales Revenue Disaggregated by Sales Channel and Geographic Region (Details)

v3.19.2
Basis of Presentation and Summary of Significant Accounting Policies - Sales Revenue Disaggregated by Sales Channel and Geographic Region (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Disaggregation Of Revenue [Line Items]        
Total sales revenue $ 95,863 $ 91,987 $ 180,681 $ 165,571
Business to Business | Domestic        
Disaggregation Of Revenue [Line Items]        
Total sales revenue 29,653 32,943 55,714 60,959
Business to Business | International        
Disaggregation Of Revenue [Line Items]        
Total sales revenue 22,564 20,759 42,367 37,665
Direct-to-Consumer | Domestic        
Disaggregation Of Revenue [Line Items]        
Total sales revenue $ 43,646 $ 38,285 $ 82,600 $ 66,947