Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Recently Issued Accounting Pronouncements (Details)

v3.20.2
Summary of Significant Accounting Policies - Recently Issued Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Jan. 01, 2020
Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Accumulated deficit $ (198,719)   $ (169,786)
Cumulative Effect, Period Of Adoption, Adjustment      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Accumulated deficit   $ 17,000