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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2024

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, 2024 and 2023 is as follows (in thousands):

						Three Months Ended June 30,												Six Months Ended June 30,
						2024						2023						2024						2023
Cost of net revenues						$	2,582					$	1,901					$	4,646					$	3,708
Selling, general and administrative						34,274						29,002						62,768						57,693
Research and development						10,172						6,957						18,402						14,194
Total stock-based compensation						$	47,028					$	37,860					$	85,816					$	75,595

Summary Of Restricted Stock Units

A summary for the six months ended June 30, 2024 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, 2023			736						$	367.63
Granted			631						310.21
Vested and released			(249)						370.60
Forfeited			(34)						360.58
Unvested as of June 30, 2024			1,084						$	333.79					1.8						$	261,797

Summary Of Market-performance Based Restricted Stock Units

The following table summarizes the MSU performance activity for the six months ended June 30, 2024: 

			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, 2023			158						$	811.06
Granted			83						617.79
Vested and released 1			(32)						1,102.09
Forfeited			(5)						1,102.09
Unvested as of June 30, 2024			204						$	679.52					1.9						$	49,247

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,
																		2024						2023
Expected term (in years)																		0.9						1.0
Expected volatility																		56.0		%				56.7		%
Risk-free interest rate																		4.8		%				4.6		%
Expected dividends																		—						—
Weighted average fair value at grant date																		$	100.10					$	105.75

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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.

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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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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.

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