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Summary of Significant Accounting Policies - Public Offering Costs (Details) - USD ($)
Dec. 31, 2019
Dec. 27, 2019
Nov. 13, 2019
Accounting Policies [Abstract]      
Maximum aggregate primary offering of unspecified number of common shares, preferred shares, debt securities, or warrants     $ 200,000,000
Shares held by selling stockholders registered for offer in secondary offerings   2,000,000  
Offering costs capitalized $ 100,000