Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Net Income
Net income	$ 15,061	$ 9,130
Dividends on Preferred Stock	(833)	(832)
Net Income allocated to Common Shareholders	$ 14,228	$ 8,298
Weighted-Average Shares
Weighted average shares - Basic	28,690,876	21,114,400
Effect of dilutive securities-restricted stock awards	19,604	8,857
Weighted average shares - diluted	28,710,480	21,123,257
Per Share Amount
Basic earnings per share	$ 0.50	$ 0.39
Diluted earnings per share	$ 0.50	$ 0.39

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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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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The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders.

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