Earnings Per Share - Reconciliation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020		Mar. 31, 2019
Earnings Per Share [Abstract]
Net (loss)/income	$ (8,638)		$ 8,824
Less: Income distributed to participating securities	(555)		(544)
Less: Undistributed income allocable to participating securities			(391)
Net (loss)/income available to common stockholders – Basic EPS	$ (9,193)		$ 7,889
Weighted average common shares (in thousands)	152,519		151,625
Basic (loss)/earnings per share	$ (0.06)		$ 0.05
Net (loss)/income available to common stockholders	$ (9,193)		$ 7,889
Add back: Undistributed income allocable to participating securities			391
Less: Reallocation of undistributed income allocable to participating securities considered potentially dilutive			(390)
Net (loss)/income available to common stockholders – Diluted EPS	$ (9,193)		$ 7,890
Weighted average common shares	152,519		151,625
Dilutive effect of common stock equivalents, excluding participating securities			196
Weighted average diluted shares	152,519	[1]	151,821
Diluted earnings per share	$ (0.06)		$ 0.05

[1] Excludes participating securities as the Company reported a net loss for the period.