Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 19,135	$ 15,227
Weighted Average Common Shares, Basic EPS	45,452,000	45,338,000
Weighted Average Common Shares, Dilutive effect of nonvested share awards	332,000	81,000
Weighted Average Common Shares, Diluted EPS	45,784,000	45,419,000
EPS, Basic (in dollars per share)	$ 0.42	$ 0.34
EPS, Dilutive effect of nonvested share awards (in dollars per share)	0	0
EPS, Diluted (in dollars per share)	$ 0.42	$ 0.34
Antidilutive options outstanding	0	0