Net income per share (Tables)

6 Months Ended

Jul. 31, 2019

Earnings Per Share [Abstract]

Schedule of earnings per share, basic and diluted

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

(in thousands, except per share data)	Three months ended July 31,				Six months ended July 31,
	2019		2018		2019		2018
Numerator (basic and diluted):
Net income	$	19,366	$	22,517	$	61,188	$	45,094
Denominator (basic):
Weighted-average common shares outstanding	64,220		61,880		63,289		61,531
Denominator (diluted):
Weighted-average common shares outstanding	64,220		61,880		63,289		61,531
Weighted-average dilutive effect of stock options and restricted stock units	1,363		1,517		1,496		1,529
Diluted weighted-average common shares outstanding	65,583		63,397		64,785		63,060
Net income per share:
Basic	$	0.30	$	0.36	$	0.97	$	0.73
Diluted	$	0.30	$	0.36	$	0.94	$	0.72