Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Litigation (Details)

v3.20.1
Commitments and Contingencies - Litigation (Details) - item
Feb. 04, 2019
Nov. 30, 2019
Aug. 12, 2019
Loss Contingencies [Line Items]      
Threshold period for not filing response to complaint 30 days    
Case of Novitzki vs Zaderej      
Loss Contingencies [Line Items]      
Minimum number of candidates elected to board   6 3