Stock-based Compensation Expense (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation Expense

Stock-based compensation expense included in the condensed consolidated statements of operations was as follows (in thousands):

	Three Months Ended March 31,
	2023		2022
Infrastructure and trust & safety	$	18,532	$	11,356
Research and development	129,257		74,814
General and administrative	30,650		20,795
Sales and marketing	6,465		5,330
Total stock-based compensation expense	$	184,904	$	112,295

Schedule of Summarizes the Company's Stock Option Activity

The following table summarizes the Company’s stock option activity (in thousands, except per option data and remaining contractual term):

	Options Outstanding
	Number of Shares Subject to Options	Weighted- Average Exercise Price (per Option)		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Balances as of December 31, 2022	51,591	$	2.85	6.00	$	1,321,183
Granted	—	—
Cancelled, forfeited, and expired	(180)	$	4.69
Exercised	(2,263)	$	2.61
Balances as of March 31, 2023	49,148	$	2.86	5.77	$	2,070,340
Exercisable as of March 31, 2023	40,367	$	2.51	5.49	$	1,714,354
Vested and expected to vest at March 31, 2023	49,148	$	2.86	5.77	$	2,070,340

Schedule of Company's Restricted Stock Units and Unregistered Restricted Stock Awards Activity

The following table summarizes the Company’s RSU and RSA activity (in thousands, except per share data):

	RSUs			RSAs
	Number of Shares	Weighted- Average Grant Date Fair Value (per Share)		Number of Shares	Weighted- Average Grant Date Fair Value (per Share)
Unvested as of December 31, 2022	30,322	$	48.73	500	$	52.55
Granted	7,124	$	36.35	—	—
Vested and released	(2,911)	$	48.18	(75)	$	50.75
Cancelled	(579)	$	53.00	—	—
Unvested as of March 31, 2023	33,956	$	46.11	425	$	52.99

Schedule of Measured Based on an Average of Our Stock Price

The CEO Long-Term Performance Award is divided into seven performance periods that are eligible to vest based on the achievement of various Company Stock Price Hurdles, measured based on an average of our stock price over a consecutive 90-day trading period applicable to the performance period as set forth below. In addition, Mr. Baszucki must remain employed as our CEO through the date a Company Stock Price Hurdle is achieved in order to earn the RSUs that relate to the applicable Company Stock Price Hurdle.

	Company Stock Price Hurdle		Number of RSUs Eligible to Vest	Performance Period Commencement Dates as Measured from the Effective Date
1	$	165.00	750,000	2 years
2	$	200.00	750,000	3 years
3	$	235.00	2,000,000	4 years
4	$	270.00	2,000,000	5 years
5	$	305.00	2,000,000	5 years
6	$	340.00	2,000,000	5 years
7	$	375.00	2,000,000	5 years