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Capital Stock and Earnings Per Share Capital Stock and Earnings Per Share - Narrative (Details)
Dec. 31, 2019
$ / shares
Common Stock  
Class of Stock [Line Items]  
Stock Voting Power Percentage 60.00%
First Liquidation Right Amount Available For Distribution Per Share $ 0.50
Third Liquidation Right Amount Available For Distribution Per Share $ 0.50
Class B Stock  
Class of Stock [Line Items]  
Stock Voting Power Percentage 40.00%
Second Liquidation Right Amount Available For Distribution Per Share $ 1.00