Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Segment Reporting - Additional Information (Details)

v3.20.1
Summary of Significant Accounting Policies - Segment Reporting - Additional Information (Details) - Segment
9 Months Ended 12 Months Ended
Aug. 05, 2019
Dec. 31, 2017
Dec. 31, 2018
Accounting Policies [Abstract]      
Number of operating segments 1 1 1