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Equity, Capital and Other Interests - Other - Additional Information (Details)
74 Months Ended 147 Months Ended
Mar. 31, 2020
shares
Mar. 31, 2020
shares
Equity Capital And Other Interests [Abstract]    
Additional common shares authorized 13,000,000.0 13,000,000.0
Stock repurchase program, number of shares authorized to be repurchased 13,000,000.0 13,000,000.0
Stock open market repurchased and retired during period, shares 0 0
Stock repurchase program, remaining number of shares authorized to be repurchased 13,000,000.0 13,000,000.0