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Net Income Per Share
 6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Net Income Per Share
Net Income per Share

The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share amounts):
 
Three months ended
 
Six months ended
 
June 30,
2013
 
July 1,
2012
 
June 30,
2013
 
July 1,
2012
Numerator for basic net income per share:
 
 
 
 
 
 
 
Net income
$
261,789

 
$
12,969

 
$
428,018

 
$
127,354

Denominator for basic net income per share:
 
 
 
 
 
 
 
Weighted average common shares outstanding
241,519

 
242,276

 
242,019

 
242,579

Basic net income per share
$
1.08

 
$
0.05

 
$
1.77

 
$
0.53

 
 
 
 
 
 
 
 
Numerator for diluted net income per share:
 
 
 
 
 
 
 
Net income
$
261,789

 
$
12,969

 
$
428,018

 
$
127,354

Denominator for diluted net income per share:
 
 
 
 
 
 
 
Weighted average common shares outstanding
241,519

 
242,276

 
242,019

 
242,579

Incremental common shares attributable to exercise of outstanding employee stock options, SARs and ESPP (assuming proceeds would be used to purchase common stock), and RSUs
2,733

 
2,294

 
3,083

 
3,447

Effect of dilutive 1.5% Notes due 2017
1,563

 
—

 
467

 
—

Shares used in computing diluted net income per share
245,815

 
244,570

 
245,569

 
246,026

Diluted net income per share
$
1.06

 
$
0.05

 
$
1.74

 
$
0.52

 
 
 
 
 
 
 
 
Anti-dilutive shares excluded from net income per share calculation
32,515

 
74,276

 
34,670

 
71,043



Basic earnings per share exclude any dilutive effects of stock options, SARs, RSUs, warrants and convertible debt. Diluted earnings per share include the dilutive effects of stock options, SARs, RSUs, ESPP and the 1.5% Notes due 2017. Certain common stock issuable under stock options, SARs, warrants and the 1.5% Notes due 2017 have been omitted from the current year diluted net income per share calculation because their inclusion is considered anti-dilutive. Certain common stock issuable under stock options, SARs, warrants, the 1% Notes due 2013 and the 1.5% Notes due 2017 have been omitted from the prior year diluted net income per share calculation because their inclusion is considered anti-dilutive.