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Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Description of Business and Summary of Significant Accounting Policies [Line Items]    
Deferred Revenue $ 1.0 $ 1.1
Synodex [Member]    
Description of Business and Summary of Significant Accounting Policies [Line Items]    
Noncontrolling Interest Increase in Ownership Percentage by Parent 92.50%