Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net (loss) income to shareholders	$ (36,815)	$ 22,728
Weighted average common shares outstanding:
Basic (in shares)	30,476,307	30,059,398
Common share equivalents (in shares)	0	412,906
Diluted (in shares)	30,476,307	30,472,304
(Loss) earnings per share:
Basic (in dollars per share)	$ (1.21)	$ 0.76
Common share equivalents (in dollars per share)	0	(0.01)
Diluted (in dollars per share)	$ (1.21)	$ 0.75