Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic Earnings Per Share:
Net income	$ 11,712	$ (1,975)	$ 10,674	$ 7,285	$ 9,737	$ 17,959
Weighted average shares outstanding (in shares)	16,094,084		14,893,854		16,117,792	13,536,646
Basic earnings per common share (in dollars per share)	$ 0.73		$ 0.72		$ 0.60	$ 1.33
Diluted Earnings Per Share:
Net income	$ 11,712	$ (1,975)	$ 10,674	$ 7,285	$ 9,737	$ 17,959
Weighted average shares outstanding, including all dilutive potential shares (in shares)	16,099,682		14,900,057		16,125,375	13,545,290
Diluted earnings per common share (in dollars per share)	$ 0.73		$ 0.72		$ 0.60	$ 1.33