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Stock-based Compensation Expense and Share Repurchase Programs (Tables)
 9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Stock-based Compensation Expense by Line Item
During the three and nine months ended September 30, 2020 and 2019, the Company recognized the following stock-based compensation expense:
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
(in thousands)
Stock-based compensation expense by type of award:
Restricted stock and restricted stock units (including PSUs)
$84,043 $61,175 $279,611 $185,651 
Stock options
13,221 21,737 47,334 76,053 
ESPP share issuances
3,225 3,044 8,565 8,430 
Stock-based compensation expense related to inventories
(950)(536)(3,076)(1,236)
Total stock-based compensation expense included in costs and expenses
$99,539 $85,420 $332,434 $268,898 
Stock-based compensation expense by line item:
Cost of sales
$1,250 $1,337 $3,998 $4,178 
Research and development expenses
60,770 52,504 203,732 167,851 
Sales, general and administrative expenses
37,519 31,579 124,704 96,869 
Total stock-based compensation expense included in costs and expenses
99,539 85,420 332,434 268,898 
Income tax effect
(35,295)(21,996)(130,692)(87,638)
Total stock-based compensation expense, net of tax
$64,244 $63,424 $201,742 $181,260 
Schedule of Unrecognized Stock-based Compensation Expense, Net of Estimated Forfeitures
The following table sets forth the Company’s unrecognized stock-based compensation expense as of September 30, 2020, by type of award and the weighted-average period over which that expense is expected to be recognized:
As of September 30, 2020
Unrecognized Expense
Weighted-average
Recognition Period
(in thousands)(in years)
Type of award:
Restricted stock units (including PSUs)
$487,254 2.06
Stock options
$76,261 1.95
ESPP share issuances
$3,265 0.44
Schedule of Stock Options Outstanding and Exercisable
The following table summarizes information about stock options outstanding and exercisable as of September 30, 2020:
Options Outstanding
Options Exercisable
Range of
Exercise Prices
Number
Outstanding
Weighted-average
Remaining
Contractual Life
Weighted-average
Exercise Price
Number
Exercisable
Weighted-average
Exercise Price
(in thousands)(in years)(per share)(in thousands)(per share)
$36.28–$40.00
62 1.09$38.06 62 $38.06 
$40.01–$60.00
157 1.98$47.13 157 $47.13 
$60.01–$80.00
105 3.49$74.82 104 $74.82 
$80.01–$100.00
1,029 5.66$88.91 919 $89.20 
$100.01–$120.00
129 4.39$109.27 128 $109.21 
$120.01–$140.00
282 4.98$129.42 281 $129.43 
$140.01–$160.00
740 7.36$155.49 369 $155.41 
$160.01–$180.00
599 7.76$168.34 282 $165.74 
$180.01–$200.00
1,252 8.14$185.31 422 $184.85 
$200.01–$286.27
23 9.67$286.27 23 $286.27 
Total4,378 6.63$140.26 2,747 $123.22