Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Roll forward of common shares outstanding
Balance at the beginning of the year		32,472,406	32,276,787	32,472,406
Repurchases	(122,000)	(220,731)	0	(342,731)
Restricted share issuances			158,969	137,632
Balance at the end of the period	32,267,307		32,435,756	32,267,307