Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Common Share

The following table sets forth the computation of basic and diluted net income per common share:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income	$	74,023	$	26,067	$	211,171	$	61,357
Net income per common share - basic	$	1.55	$	0.55	$	4.43	$	1.29
Net income per common share - diluted	$	1.54	$	0.55	$	4.40	$	1.29
Weighted average common shares outstanding - basic	47,737		47,476		47,666		47,406
Plus dilutive effect of potential common shares	343		200		356		241
Weighted average common shares outstanding - diluted	48,080		47,676		48,022		47,647