Net Earnings Per Share (Tables)

6 Months Ended

Oct. 31, 2016

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)	2016		2015		2016		2015
Numerator used in basic and diluted net earnings
per common share:
Net income	$	17,637	$	18,180	$	39,298	$	33,338
Denominator:
Denominator for basic net earnings per common
share - weighted-average shares	16,296		16,283		16,280		16,232
Effect of dilutive securities:
Stock options and restricted stock units	144		190		131		215
Denominator for diluted net earnings per common
share - weighted-average shares and assumed
conversions	16,440		16,473		16,411		16,447
Net earnings per share
Basic	$	1.08	$	1.12	$	2.41	$	2.05
Diluted	$	1.07	$	1.10	$	2.39	$	2.03