Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Income
Net Income	$ 10,467	$ 11,599	$ 34,355	$ 24,373
Dividends on preferred stock	(833)	(762)	(2,498)	(1,169)
Net income allocated to common shareholders	$ 9,634	$ 10,837	$ 31,857	$ 23,204
Weighted average common shares outstanding:
Weighted average shares - Basic	21,310,199	21,111,200	21,180,384	21,111,200
Effect of dilutive securities-restricted stock awards	8,160	2,761	6,060	1,642
Weighted average shares - diluted	21,318,359	21,113,961	21,186,444	21,112,842
Per Share Amount
Basic earnings per share	$ 0.45	$ 0.51	$ 1.50	$ 1.10
Diluted earnings per share	$ 0.45	$ 0.51	$ 1.50	$ 1.10