Summary of Significant Accounting Policies, Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator [Abstract]
Net earnings	$ 140,887	$ 118,745	$ 109,472
Denominator [Abstract]
Denominator for basic EPS - weighted average common shares (in shares)	41,888	42,077	42,301
Effect of dilutive securities (in shares)	325	181	45
Denominator for diluted EPS - diluted weighted average shares outstanding (in shares)	42,213	42,258	42,346
Earnings per Common Share [Abstract]
Basic (in dollars per share)	$ 3.36	$ 2.82	$ 2.59
Diluted (in dollars per share)	$ 3.34	$ 2.81	$ 2.59