XML 30 R35.htm IDEA: XBRL DOCUMENT v3.20.1
Commitments and Contingencies - Defined Contribution Plan (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended
Jan. 31, 2018
Mar. 31, 2020
Mar. 31, 2019
Commitments and Contingencies      
Employer matching contribution (as a percent) 50.00%    
Company matching contribution   $ 0.3 $ 0.2
Maximum      
Commitments and Contingencies      
Maximum employee contribution 6.00%