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Description of Business, Basis of Presentation, and Operating Segment (Details)
6 Months Ended
Feb. 22, 2019
Jun. 30, 2019
segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Number of operating segments   1
Number of reportable segments   1
Minimum    
Equity [Line Items]    
Stock split conversion ratio 0.2  
Maximum    
Equity [Line Items]    
Stock split conversion ratio 0.1