Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income as reported	$ 14,634	$ 18,424	$ 27,502	$ 34,580
Weighted average common shares outstanding (in shares)	26,180,000	26,887,000	26,325,000	25,415,000
Additional dilutive common stock equivalents (in shares)	15,000	53,000	29,000	73,000
Weighted average diluted common shares outstanding (in shares)	26,195,000	26,940,000	26,354,000	25,488,000
Basic earnings per common share (in dollars per share)	$ 0.56	$ 0.69	$ 1.04	$ 1.36
Diluted earnings per common share (in dollars per share)	$ 0.56	$ 0.68	$ 1.04	$ 1.36
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	157,000	130,000	147,000	99,000