Net Earnings Per Share (Tables)

6 Months Ended

Oct. 31, 2017

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

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

	Three Months Ended				Six Months Ended
	October 31,				October 31,
(in thousands, except per share amounts)	2017		2016		2017		2016
Numerator used in basic and diluted net earnings
per common share:
Net income	$	19,755	$	17,637	$	42,036	$	39,298
Denominator:
Denominator for basic net earnings per common
share - weighted-average shares	16,197		16,296		16,235		16,280
Effect of dilutive securities:
Stock options and restricted stock units	71		144		84		131
Denominator for diluted net earnings per common
share - weighted-average shares and assumed
conversions	16,268		16,440		16,319		16,411
Net earnings per share
Basic	$	1.22	$	1.08	$	2.59	$	2.41
Diluted	$	1.21	$	1.07	$	2.58	$	2.39