v3.8.0.1

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Net income, Basic													$ 27,582	$ 23,303	$ 13,378
Basic common shares outstanding													34,482,630	32,365,800	22,310,014
Earnings per share, Basic	$ 0.06	$ 0.28	$ 0.29	$ 0.19	$ 0.20	$ 0.30	$ 0.10	$ 0.12	$ 0.16	$ 0.11	$ 0.18	$ 0.17	$ 0.80	$ 0.72	$ 0.60
Net income, Diluted													$ 27,582	$ 23,303	$ 13,378
Effect of options, restricted stock and contingent shares issuable													848,429	1,106,016	841,696
Diluted common shares outstanding													35,331,059	33,471,816	23,151,710
Earnings per share, Diluted	$ 0.06	$ 0.27	$ 0.28	$ 0.18	$ 0.19	$ 0.29	$ 0.10	$ 0.11	$ 0.15	$ 0.11	$ 0.17	$ 0.16	$ 0.78	$ 0.70	$ 0.58

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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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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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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.

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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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