Net Earnings Per Share (Tables)

6 Months Ended

Oct. 31, 2015

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)	2015		2014		2015		2014
Numerator used in basic and diluted net earnings
per common share:
Net income	$	18,180	$	7,671	$	33,338	$	16,909
Denominator:
Denominator for basic net earnings per common
share - weighted-average shares	16,283		15,672		16,232		15,602
Effect of dilutive securities:
Stock options and restricted stock units	190		288		215		262
Denominator for diluted net earnings per common
share - weighted-average shares and assumed
conversions	16,473		15,960		16,447		15,865
Net earnings per share
Basic	$	1.12	$	0.49	$	2.05	$	1.08
Diluted	$	1.10	$	0.48	$	2.03	$	1.07