Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 3,337	$ 9,949
Basic weighted-average common shares outstanding (in shares)	39,433	38,603
Effect of dilutive stock options (in shares)	28	58
Effect of dilutive restricted stock (in shares)	641	1,126
Diluted weighted-average common shares outstanding (in shares)	40,102	39,787
Basic income per common share (in dollars per share)	$ 0.08	$ 0.26
Diluted income per common share (in dollars per share)	$ 0.08	$ 0.25
Antidilutive securities excluded from diluted net income per common share (in shares)	604	222