Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.19.1
Commitments and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Other Commitments [Line Items]        
Rent expense     $ 2,134 $ 866
Chad Steelberg [Member]        
Other Commitments [Line Items]        
Employment agreement term   3 years    
Estimated common stock calculated value   $ 125    
Share based compensation arrangement by share based payment award, shares issued in period       17,807
Annual salary under agreement $ 250      
Professional Employer Organization [Member]        
Other Commitments [Line Items]        
Settlement of claim       $ 400