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(Loss) Earnings per Share - Summary of Calculations of Basic and Diluted (Loss) Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator
Net (Loss) Income	$ (4,190)	$ (10,427)	$ 5,086	$ 896	$ 6,114	$ 5,481	$ 752	$ (9,969)	$ (8,635)	$ 2,378	$ (52,982)
Denominator
Weighted average number of shares – basic									48,582	47,996	47,836
Effect of dilutive securities:
PSUs, RSUs and restricted stock										292
Weighted average number of shares – diluted									48,582	48,288	47,836
(Loss) earnings per share - basic	$ (0.09)	$ (0.21)	$ 0.10	$ 0.02	$ 0.13	$ 0.11	$ 0.02	$ (0.21)	$ (0.18)	$ 0.05	$ (1.11)
(Loss) earnings per share - diluted	$ (0.09)	$ (0.21)	$ 0.10	$ 0.02	$ 0.13	$ 0.11	$ 0.02	$ (0.21)	$ (0.18)	$ 0.05	$ (1.11)

X

- Definition

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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