Quarterly report pursuant to Section 13 or 15(d)

Revenue and Cost of Revenues - Narrative (Details)

v3.20.2
Revenue and Cost of Revenues - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]          
Increase (decrease) in contract with customer liability     $ 7,585,000    
Recognized deferred revenue $ 10,350,000 $ 6,865,000 25,829,000 $ 16,588,000  
Deferred sales incentive compensation 10,072,000   10,072,000   $ 9,387,000
Amortization expense for the deferred sales incentive compensation $ 1,043,000 $ 753,000 2,072,000 1,404,000  
Impairment loss for capitalized costs     $ 0 $ 0