Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table presents the calculation of net earnings per common share (“EPS”) — basic and diluted (in thousands, except per share data): 

	Three months ended June 30,				Six months ended June 30,
	2019		2018		2019		2018
Net income	$	22,833	$	31,054	$	53,831	$	35,929
Weighted-average number of common shares outstanding (for basic calculation)	20,622		20,352		20,577		20,304
Dilutive securities	898		1,217		969		1,232
Weighted-average common and common equivalent shares outstanding (for diluted calculation)	21,520		21,569		21,546		21,536
EPS — basic	$	1.11	$	1.53	$	2.62	$	1.77
EPS — diluted	$	1.06	$	1.44	$	2.50	$	1.67