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Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2023
Stockholders' Equity Note [Abstract] |
Stock-based Compensation Expense | The stock-based compensation related to our stock-based awards and employee stock purchase plan for the three and six months ended June 30, 2023 and 2022 is as follows (in thousands):
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2023 |  | 2022 |  | 2023 |  | 2022
Cost of net revenues |  | $ | 1,901 |  |  | $ | 1,614 |  |  | $ | 3,708 |  |  | $ | 3,128 |
Selling, general and administrative |  | 29,002 |  |  | 26,491 |  |  | 57,693 |  |  | 51,216 |
Research and development |  | 6,957 |  |  | 6,035 |  |  | 14,194 |  |  | 11,417 |
Total stock-based compensation |  | $ | 37,860 |  |  | $ | 34,140 |  |  | $ | 75,595 |  |  | $ | 65,761 |
Summary Of Restricted Stock Units | A summary for the six months ended June 30, 2023 is as follows:
| Number of Shares Underlying RSUs (in thousands) |  | Weighted Average Grant Date Fair Value |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Unvested as of December 31, 2022 | 489 |  |  | $ | 427.23 |  |  |  |  |
Granted | 502 |  |  | 316.03 |  |  |  |  |
Vested and released | (191) |  |  | 380.55 |  |  |  |  |
Forfeited | (27) |  |  | 394.18 |  |  |  |  |
Unvested as of June 30, 2023 | 773 |  |  | $ | 367.66 |  |  | 1.8 |  | $ | 273,404 |
Summary Of Market-performance Based Restricted Stock Units | The following table summarizes the MSU performance activity for the six months ended June 30, 2023:
| Number of Shares Underlying MSUs (in thousands) |  | Weighted Average Grant Date Fair Value |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands)
Unvested as of December 31, 2022 | 144 |  |  | $ | 725.73 |  |  |  |  |
Granted 1 | 82 |  |  | 629.53 |  |  |  |  |
Vested and released | (25) |  |  | 392.67 |  |  |  |  |
Forfeited | (41) |  |  | 392.67 |  |  |  |  |
Unvested as of June 30, 2023 | 160 |  |  | $ | 812.75 |  |  | 1.9 |  | $ | 56,670 |
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions | The fair value of the option component of the 2010 Purchase Plan shares was estimated at the grant date using the Black-Scholes option pricing model with the following weighted average assumptions:
|  | Six Months Ended June 30, |  |
|  | 2023 |  | 2022 |  |  |  |
Expected term (in years) |  | 1.0 |  | 1.5 |  |  |  |
Expected volatility |  | 56.7 | % |  | 48.6 | % |  |  |  |
Risk-free interest rate |  | 4.6 | % |  | 1.0 | % |  |  |  |
Expected dividends |  | — |  |  | — |  |  |  |  |
Weighted average fair value at grant date |  | $ | 105.75 |  |  | $ | 196.97 |  |  |  |  |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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