Quarterly report pursuant to Section 13 or 15(d)

Redeemable Preferred Stock and Stockholders' (Deficit) Equity - Additional Information (Detail)

v3.20.1
Redeemable Preferred Stock and Stockholders' (Deficit) Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Temporary Equity And Stockholders Equity [Line Items]      
Temporary equity preferred stock, shares authorized 1,000,000   1,000,000
Temporary equity preferred stock, shares issued 70,000   70,000
Temporary equity preferred stock, shares outstanding 70,000   70,000
Compensation expense related to stock options $ 0.7 $ 0.8  
Net impact of stock-based compensation expense to earnings per basic share $ (0.02) $ (0.04)  
Net impact of stock-based compensation expense to earnings per diluted share $ (0.02) $ (0.04)  
Total unrecognized compensation expense $ 1.1    
Unrecognized share based compensation expense to be recognized over weighted-average period 1 year 6 months    
Outstanding stock options, RSUs and warrants excluded from diluted loss per share 3,400,000 5,700,000  
Restricted Stock Units (RSUs)      
Temporary Equity And Stockholders Equity [Line Items]      
Granted 0    
Cancelled grants due to non achievement of performance targets 840,000    
2002 Stock Incentive Plan      
Temporary Equity And Stockholders Equity [Line Items]      
Common stock authorized for issuance 3,100,000    
Common stock issued pursuant to options exercised 1,000,000    
Options and restricted stock units outstanding 1,200,000    
Options available for future grants 0    
2018 Long-Term Incentive Plan      
Temporary Equity And Stockholders Equity [Line Items]      
Common stock authorized for issuance 5,000,000    
Options and restricted stock units outstanding 2,300,000    
Options available for future grants 800,000    
Maximum      
Temporary Equity And Stockholders Equity [Line Items]      
Temporary equity preferred stock, shares authorized 1,000,000    
Series B Junior Participating Preferred Stock [Member]      
Temporary Equity And Stockholders Equity [Line Items]      
Temporary equity preferred stock, shares authorized 500,000    
Private Placement | Series E Participating Convertible Preferred Stock      
Temporary Equity And Stockholders Equity [Line Items]      
Temporary equity preferred stock, shares issued 69,565   69,565
Temporary equity preferred stock, shares outstanding 69,565   69,565