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Stock-Based Compensation
6 Months Ended
Jul. 04, 2020
Stock-Based Compensation  
Stock-Based Compensation

11. Stock-Based Compensation

In fiscal 2009, the stockholders of the Company approved the 2009 Stock Incentive Plan (the “2009 Plan”) and the 2009 Employee Stock Purchase Plan (the “2009 Purchase Plan”). In fiscal 2017, the stockholders of the Company approved amendments to both the 2009 Plan and the 2009 Purchase Plan. These amendments authorized additional shares of common stock for issuance, to comply with changes in applicable law, improve the Company’s corporate governance and to implement other best practices.

Stock-based compensation costs are based on the fair values on the date of grant for stock awards and stock options and on the date of enrollment for the employee stock purchase plans. The fair values of stock awards (such as restricted stock units (RSUs), performance stock units (PSUs) and restricted stock awards (RSAs)) are estimated based on their intrinsic values. The fair values of market stock awards (MSUs) are estimated using a Monte Carlo simulation. The fair values of stock options and employee stock purchase plans are estimated using the Black-Scholes option-pricing model.

The following table presents details of stock-based compensation costs recognized in the Condensed Consolidated Statements of Operations (in thousands):

Three Months Ended

Six Months Ended

July 4,

June 29,

July 4,

June 29,

    

2020

    

2019

    

2020

    

2019

Cost of revenues

$

376

$

326

$

711

$

645

Research and development

7,072

6,459

14,442

 

12,556

Selling, general and administrative

7,009

6,884

14,617

 

13,052

14,457

13,669

29,770

 

26,253

Income tax (expense) benefit

760

(2,186)

2,125

 

1,134

$

13,697

$

15,855

$

27,645

$

25,119

The Company had approximately $100.1 million of total unrecognized compensation costs related to granted stock options and awards as of July 4, 2020 that are expected to be recognized over a weighted-average period of approximately 2.4 years. There were no significant stock-based compensation costs capitalized into assets in any of the periods presented.