Equity-based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Stock Options Activity

The tables below summarize the Company’s stock option and RSU activity:

	Outstanding Options
(in thousands, except unit price)	Number of Options	Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
December 31, 2018	68,836	$	1.71	8.20	$	26,976
Granted	30,917	$	2.03
Forfeited / cancelled	(12,401)	$	1.95
Exercised	(5,077)	$	1.34
December 31, 2019	82,275	$	1.81	7.95	$	34,636
Granted	9,834	$	2.59
Forfeited / cancelled	(8,190)	$	2.06
Exercised	(18,215)	$	1.59
December 31, 2020	65,704	$	1.95	7.40	$	401,846
Granted	6,608	$	16.46
Forfeited / cancelled	(5,910)	$	2.02
Exercised	(34,767)	$	1.79
December 31, 2021	31,635	$	5.15	6.94	$	766,531
Exercisable as of December 31, 2021	12,134	$	4.02	6.53	$	307,704
Expected to vest as of December 31, 2021	17,261	$	6.31	7.12	$	398,165

The following information is provided for our stock options:

(in thousands, except per unit amounts)	December 31,
	2021		2020		2019
Weighted average grant-date fair value of stock options granted	$	16.46	$	1.57	$	1.15
Intrinsic fair value of stock options exercised	$	675,935	$	44,076	$	3,823

Schedule of Restricted Stock Units Activity

	Outstanding RSUs
(in thousands, except unit price)	Number of RSUs	Weighted Average Grant-Date Fair Value
December 31, 2018	261	$	1.97
Granted	7,929	2.10
Vested	—	—
Forfeited / cancelled	(725)	2.10
December 31, 2019	7,465	$	2.09
Granted	14,011	7.06
Vested	(53)	2.06
Forfeited / cancelled	(658)	4.58
December 31, 2020	20,765	$	4.80
Granted	17,646	32.17
Vested	(12,478)	3.97
Forfeited / cancelled	(2,422)	25.64
December 31, 2021	23,511	$	23.80

Schedule of Profits Interests Units Activity

	Outstanding RSUs
(in thousands, except unit price)	Number of RSUs	Weighted Average Grant-Date Fair Value
December 31, 2018	261	$	1.97
Granted	7,929	2.10
Vested	—	—
Forfeited / cancelled	(725)	2.10
December 31, 2019	7,465	$	2.09
Granted	14,011	7.06
Vested	(53)	2.06
Forfeited / cancelled	(658)	4.58
December 31, 2020	20,765	$	4.80
Granted	17,646	32.17
Vested	(12,478)	3.97
Forfeited / cancelled	(2,422)	25.64
December 31, 2021	23,511	$	23.80

Schedule of Valuation Assumptions for Stock Options

The fair value of stock options is estimated on the grant date with the following assumptions:

	December 31,
	2021	2020			2019
Weighted-average expected term (years)	4.27	6.15			6.00
Weighted-average expected volatility	70%	66%			60%
Expected dividend yield	—	—			—
Risk-free interest rate	0.62%	0.34%	-	1.68%	1.59%	-	2.98%

Schedule of Equity-Based Compensation

The following table presents the effects of equity-based compensation, as retrospectively adjusted for the change in accounting principle described above, in the consolidated statements of operations and comprehensive loss:

	Year Ended December 31,
(in thousands)	2021		2020		2019
Cost of sales	$	10,981	$	620	$	365
Operating, general and administrative	238,364		30,711		20,458
Total	$	249,345	$	31,331	$	20,823