Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Basic [Abstract]
Net income	$ 58,693	$ 81,917
Weighted average shares outstanding (in shares)	26,571	27,407
Basic net income per share (in dollars per share)	$ 2.21	$ 2.99
Diluted [Abstract]
Net income	$ 58,693	$ 81,917
Weighted average shares outstanding (in shares)	26,571	27,407
Restricted stock awards (in shares)	109	72
Total (in shares)	26,680	27,479
Diluted net income per share (in dollars per share)	$ 2.20	$ 2.98