Net Income per Share (Tables)
9 Months Ended
Jan. 31, 2016
Earnings Per Share [Abstract]  
Schedule of Calculation of Basic and Diluted Net Income (Loss) per Share
The following table presents the calculation of basic and diluted net income per share:
 
Three Months Ended
 
Nine Months Ended
(in thousands, except per share amounts)
January 31, 2016
 
January 25, 2015
 
January 31, 2016
 
January 25, 2015
Numerator:
 
 
 
 
 
 
 
Net income
$
12,084

 
$
1,679

 
$
22,121

 
$
4,560

Numerator for basic net income per share
12,084

 
1,679

 
22,121

 
4,560

Numerator for diluted net income per share
$
12,084

 
$
1,679

 
$
22,121

 
$
4,560

Denominator:
 
 
 
 
 
 
 
Denominator for basic net income per share - weighted average shares
107,180


103,563

 
106,367

 
100,475

Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options and restricted stock units
948

 
2,427

 
2,121

 
3,350

Dilutive potential common shares
948

 
2,427

 
2,121

 
3,350

Denominator for diluted net income per share
108,128

 
105,990

 
108,488

 
103,825

Net income per share:
 
 
 
 
 
 
 
Basic
$
0.11

 
$
0.02

 
$
0.21

 
$
0.05

Diluted
$
0.11

 
$
0.02

 
$
0.20

 
$
0.04

Schedule of Antidilutive Securities Excluded from Computation of Net Income (Loss) per Share
The following table presents common shares related to potentially dilutive securities excluded from the calculation of diluted net income per share as their effect would have been anti-dilutive:
 
Three Months Ended
 
Nine Months Ended
(in thousands)
January 31, 2016
 
January 25, 2015
 
January 31, 2016
 
January 25, 2015
Stock options and restricted stock units
5,287

 
1,170

 
3,124

 
1,062

5.0% Convertible Senior Notes due 2029
—

 
—

 
—

 
2,513

0.50% Convertible Senior Notes due 2033 (1)
—

 
—

 
—

 
—

 
5,287

 
1,170

 
3,124

 
3,575


_______________
(1) 0.50% Convertible Senior Notes due 2033 were excluded from the calculation of diluted earnings per share under the treasury stock method since the conversion price exceeded the average market price for the Company's common stock.