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Noncontrolling Interest (Details) - Noncontrolling interest holders
Dec. 31, 2019
Dec. 31, 2018
Noncontrolling Interest [Line Items]    
Ownership interest held by non-controlling interest holders 58.00% 62.00%
Weighted Average    
Noncontrolling Interest [Line Items]    
Ownership interest held by non-controlling interest holders 59.00% 62.60%