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Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Roll forward of common shares outstanding    
Balance at the beginning of the year 32,472,406 32,750,727
Restricted share issuances 94,232 136,281
Balance at the end of the period 32,345,907 32,855,508