Earnings Per Common Share (EPS) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share, Basic and Diluted [Abstract]
Net income, basic	$ 14,803	$ 4,351
Basic (in shares)	44,830	44,275
Basic (in dollars per share)	$ 0.33	$ 0.10
Effect of dilutive stock options and warrants (in shares)	990	304
Net income, diluted	$ 14,803	$ 4,351
Diluted (in shares)	45,820	44,579
Diluted (in dollars per share)	$ 0.32	$ 0.10
Antidilutive securities excluded from EPS (in shares)	96	978