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Earnings (Loss) Per Share - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income (loss) available to common shareholders	$ (515)	$ 11,825
Weighted-average number of common shares outstanding - basic (shares)	31,391,151	31,047,191
Share-based compensation plans (shares)	0	435,676
Weighted-average number of common shares - diluted (shares)	31,391,151	31,482,867
Basic earnings (loss) per common share (usd per share)	$ (0.02)	$ 0.38
Diluted earnings (loss) per common share (usd per share)	$ (0.02)	$ 0.38

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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