v3.7.0.1

Earnings Per Share - Computations of Basic and Diluted Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Dilutive and Antidilutive Securities Associated with Computation of Earnings Per Share [Line Items]
Net income	$ 4,152	$ 5,241	$ 5,534	$ 9,250
Net income allocated to participating securities - basic and diluted	79	94	104	151
Net income allocated to common shareholders - basic and diluted	$ 4,073	$ 5,147	$ 5,430	$ 9,099
Denominator for basic earnings per common share	41,225	46,011	41,512	46,157
Total weighted average diluted shares	41,250	46,011	41,541	46,157
Basic	$ 0.10	$ 0.11	$ 0.13	$ 0.20
Diluted	$ 0.10	$ 0.11	$ 0.13	$ 0.20
Options [Member]
Dilutive and Antidilutive Securities Associated with Computation of Earnings Per Share [Line Items]
Potentially dilutive securities-options (in shares)	25		29

Dilutive and antidilutive securities associated with computation of earnings per share.

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Net income loss available to common shareholders basic and diluted.

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Participating securities distributed and undistributed earnings loss basic and diluted.

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- 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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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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