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Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of Stock Option Activity

The following summarizes the stock option activity for the periods presented:

			Number of options outstanding						Weighted- average exercise price (per share)						Weighted- average remaining contract life (in years)						Aggregate intrinsic value  (in thousands)
Outstanding as of December 31, 2020			255,000						$	10.82					4.42						$	36,426
Granted			—						—
Exercised			(70,923)						12.68												9,059
Forfeited or cancelled			(806)						10.49
Outstanding as of September 30, 2021			183,271						$	10.10					3.59						$	14,694
Options vested and exercisable at September 30, 2021			178,878						$	9.79					3.53						$	14,398
Options vested and expected to vest as of September 30, 2021			183,032						$	10.09					3.59						$	14,678

Summary of Restricted Stock Unit Activity

The following summarizes the RSU activity for the periods presented:

			Number of awards outstanding						Weighted-average grant date fair value (per share)
Nonvested RSUs as of December 31, 2020			450,614						$	51.58
Granted			146,989						146.80
Vested			(173,695)						62.13
Forfeited or cancelled			(54,294)						74.82
Nonvested RSUs as of September 30, 2021			369,614						$	84.11

Schedule of Stock-Based Compensation Expense

The Company recognized total stock-based compensation expense as follows:

			Three months ended September 30,																		Nine months ended September 30,
			2020						2021												2020						2021
Cost of revenue			$	46					$	52											$	161					$	190
Research and development			508						621												1,581						2,055
Sales and marketing			369						519												1,140						1,591
General and administrative			1,459						2,633												4,424						7,756
Total			$	2,382					$	3,825											$	7,306					$	11,592

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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