Earnings Per Share (Schedule Of Earnings Per Share, Basic And Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator
Net income	$ 26,126	$ 17,117
Denominator
Weighted average common shares outstanding - basic	33,207,928	30,203,243
Dilutive effect of restricted stock units	268,516	241,033
Weighted average common shares outstanding - diluted	33,476,444	30,444,276
Earnings per share:
Basic	$ 0.79	$ 0.57
Diluted	$ 0.78	$ 0.56