XML 46 R58.htm IDEA: XBRL DOCUMENT v3.20.1
Subsequent Events - Additional Information (Detail) - Subsequent Event
shares in Millions
1 Months Ended
Apr. 30, 2020
USD ($)
shares
Paycheck Protection Program [Member]  
Subsequent Event [Line Items]  
Proceeds from Issuance of Long-term Debt $ 543,900
Debt Instrument, Term 2 years
Debt Instrument, Interest Rate, Stated Percentage 1.00%
Debt Instrument, Periodic Payment $ 22,900
Sale Agreement (ATM)  
Subsequent Event [Line Items]  
Issuance of common stock (Shares) | shares 5.2
Issuance of common stock $ 2,700,000
Offering related costs $ 100,000