Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Computation of basic and diluted net earnings per share

The following table sets forth the computation of basic and diluted EPS:

(Thousands except per share amounts)	2021		2020		2019
Numerator for basic and diluted EPS:
Net income	$	72,474	$	15,462	$	53,394
Denominator:
Denominator for basic EPS:
Weighted-average shares outstanding	20,422		20,338		20,365
Effect of dilutive securities:
Stock appreciation rights	78		39		72
Restricted stock units	124		102		75
Performance-based restricted stock units	65		124		143
Diluted potential common shares	267		265		290
Denominator for diluted EPS:
Adjusted weighted-average shares outstanding	20,689		20,603		20,655
Basic EPS	$	3.55	$	0.76	$	2.62
Diluted EPS	$	3.50	$	0.75	$	2.59