Annual report pursuant to Section 13 and 15(d)

Business (Details)

v3.20.1
Business (Details) - segment
6 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2019
Dec. 31, 2013
Jan. 31, 2013
Business Acquisition [Line Items]        
Number of operating segments 2 2    
AIA Purchase Agreement        
Business Acquisition [Line Items]        
Ownership percentage in subsidiary     94.00% 86.00%