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Net Income Per Share
 6 Months Ended
Jun. 27, 2020
Earnings Per Share [Abstract]  
NET INCOME PER SHARE NET INCOME PER SHARE
Basic net income per share is computed by dividing net income during the period by the weighted-average number of shares of common stock outstanding during that period, less unvested restricted stock awards. Diluted net income per share is impacted by equity instruments considered to be potential common shares, if dilutive, computed using the treasury stock method of accounting.
The calculations for basic and diluted net income per share for the three and six months ended June 27, 2020 and June 29, 2019 are as follows:
 Three Months Ended Six Months Ended
 June 27,
2020		June 29,
2019		June 27,
2020		June 29,
2019
 (In thousands, except per share amounts)
Net income$131,288  $107,235  $255,276  $227,790  
Weighted average common shares used to calculate basic net income per share273,432  273,159  273,488  273,155  
Stock-based awards5,648  7,895  5,719  7,722  
Weighted average common shares used to calculate diluted net income per share279,080  281,054  279,207  280,877  
Net income per share - basic$0.48  $0.39  $0.93  $0.83  
Net income per share - diluted$0.47  $0.38  $0.91  $0.81  
The following table presents shares of Cadence’s common stock outstanding for the three and six months ended June 27, 2020 and June 29, 2019 that were excluded from the computation of diluted net income per share because the effect of including these shares in the computation of diluted net income per share would have been anti-dilutive:
 Three Months Ended Six Months Ended
 June 27,
2020		June 29,
2019		June 27,
2020		June 29,
2019
 (In thousands)
Long-term performance-based stock awards40  1,386  713  807  
Options to purchase shares of common stock506  596  376  419  
Non-vested shares of restricted stock4  29  102  76  
Total potential common shares excluded550  2,011  1,191  1,302