Earnings Per Common Share (EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share, Basic and Diluted [Abstract]
Net income, Basic EPS	$ 6,195	$ 5,269
Basic EPS (in shares)	54,917	50,277
Basic EPS (in dollars per share)	$ 0.11	$ 0.10
Effect of dilutive stock options (in shares)	1,573	1,633
Net income, Diluted EPS	$ 6,195	$ 5,269
Diluted EPS (in shares)	56,490	51,910
Diluted EPS (in dollars per share)	$ 0.11	$ 0.10
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive (in shares)	976	184