XML 40 R30.htm IDEA: XBRL DOCUMENT v3.20.2
Summary of Significant Accounting Policies (Details)
$ in Millions
9 Months Ended
Sep. 30, 2020
USD ($)
Institution
Dec. 31, 2019
USD ($)
Summary of Significant Accounting Policies    
Number of financial institutions in which the company maintains cash and cash equivalents | Institution 1  
Letter of credit related to lease agreement $ 1.3 $ 1.3
Cash collateral for credit card account $ 0.1 $ 0.1