Quarterly report pursuant to Section 13 or 15(d)

Non-Controlling Interest Non-Controlling Interest (Narrative) (Details)

v3.19.1
Non-Controlling Interest Non-Controlling Interest (Narrative) (Details) - USD ($)
3 Months Ended
Sep. 30, 2018
Mar. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Mar. 31, 2018
Noncontrolling Interest [Line Items]          
Non-controlling Interest, Ownership Percentage by Parent   60.00% 60.00%    
Restricted Cash, Current   $ 0   $ 13,970,000 $ 0
Payments of Ordinary Dividends, Noncontrolling Interest $ 20,000,000        
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners     40.00%