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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 8,771	$ 10,445
Weighted average shares outstanding-basic (shares)	46,940,903	45,780,027
Effect of non-vested restricted stock and stock options outstanding (shares)	347,257	1,219,748
Weighted average shares outstanding-diluted (shares)	47,288,160	46,999,775
Earnings per share-basic (usd per share)	$ 0.19	$ 0.23
Earnings per share-diluted (usd per share)	$ 0.19	$ 0.22
Anti-dilutive shares (shares)	1,075,747	885,774

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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