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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, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income	$ 8,824	$ 9,424
Less: Income distributed to participating securities	(544)	(71)
Less: Undistributed income allocable to participating securities	(391)	(85)
Net income available to common stockholders	$ 7,889	$ 9,268
Weighted average common shares (in thousands)	151,625	135,329
Basic earnings per share	$ 0.05	$ 0.07
Net income	$ 8,824	$ 9,424
Weighted average common shares	151,625	135,329
Dilutive effect of common stock equivalents	15,186	1,139
Weighted average diluted shares	166,811	136,468
Diluted earnings per share	$ 0.05	$ 0.07

X

- Definition

The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned.

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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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