Stockholders' equity (Tables)

3 Months Ended

Mar. 31, 2022

Share-based Payment Arrangement [Abstract]

Schedule of Common Stock Reserved for Future Issuance

The Company had the following common stock reserved for future issuance as of March 31, 2022, and December 31, 2021, respectively:

	March 31,	December 31,
	2022	2021
Stock options to purchase common stock (1)	19,703,879	20,342,259
Shares available for future issuance under:
2021 Equity Incentive Plan	10,084,842	11,417,359
2021 Employee Stock Purchase Plan	2,800,000	2,800,000
Total shares of common stock reserved	32,588,721	34,559,618
(1) Excludes 105,623 and 106,155 cash-settled stock appreciation rights (“SARs”) outstanding as of March 31, 2022 and December 31, 2021, respectively.

Summary of Option Activity

The following is a summary of activity for stock options under the Equity Incentive Plans (amounts in thousands, except share and per share amounts):

	Options Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Balance - December 31, 2021	19,942,259	$	9.70	8.14	$	226,350
Granted	—	—
Exercised	(376,578)	4.03
Canceled	(261,802)	15.06
Balance - March 31, 2022	19,303,879	$	9.74	7.88	$	102,880
Vested & Expected to Vest as of March 31, 2022	19,303,879	$	9.74	7.88	$	102,880
Exercisable as of March 31, 2022	9,129,677	$	5.30	7.25	$	67,191

Summary of Stock Appreciation Rights

The following is a summary of activity for SARs under the Equity Incentive Plans (amounts in thousands, except share and per share amounts):

	SARs Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Balance - December 31, 2021	106,155	$	8.45	8.25	$	1,267
Granted	—	—
Exercised	—	—
Canceled	(532)	10.02
Balance - March 31, 2022	105,623	$	8.45	7.95	$	595
Vested & Expected to Vest as of March 31, 2022	105,623	$	8.45	7.95	$	595
Exercisable as of March 31, 2022	55,585	$	5.57	7.61	$	384

Schedule of Restricted Stock Unit Activity

A summary of RSU activity under the 2021 Plan is as follows:

	RSUs Outstanding	Weighted Average Grant Date Fair Value
Unvested - December 31, 2021	2,545,051	$27.64
Granted	1,683,039	$14.32
Released	(32,165)	$27.21
Canceled	(88,700)	$20.90
Unvested - March 31, 2022	4,107,225	$22.33

Summary of Performance-Based Options

The following table summarizes the activities of Performance-Based Awards under the Equity Incentive Plans (amounts in thousands, except share and per share amounts):

	Performance-Based Awards Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Balance - December 31, 2021	400,000	$	10.12	8.60	$	3,768
Granted	—
Exercised	—
Canceled	—
Balance - March 31, 2022	400,000	$	10.12	8.36	$	936
Vested & Expected to Vest as of March 31, 2022	400,000	$	10.12	8.36	$	936
Exercisable as of March 31, 2022	179,166	$	10.94	8.59	$	272

Schedule of Stock-Based Compensation Expense

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

	Three Months Ended March 31,
	2022		2021
Cost of revenue	$	840	$	300
Sales and marketing	4,137		1,924
Research and development	3,334		2,090
General and administrative	5,031		6,198
Total stock-based compensation expense	$	13,342	$	10,512