Common Stock Subject to Repurchase or Cancellation

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- Definition

Reversal Of Stock Based Compensation Expense

+ References

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options Available for Grant, Forfeitures in Period, Gross

+ References

No definition available.

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- Definition

Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation, Per Share

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer).

+ References

No definition available.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Oct. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares canceled (in shares)			508,847	0	508,847
Reversal of stock based compensation expense		$ 1,000
Share-based compensation expense				$ 16,954	$ 6,851	$ 3,670
Stock subject to repurchase (in shares)	44,268			23,981
Stock subject to repurchase, per share	$ 4.66				$ 4.66
Cash proceeds received for unvested shares	$ 200	100		$ 100	$ 200
Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercises in period, intrinsic value				$ 218,200	$ 8,400	$ 600
Weighted average grant date fair value, grants in period (in dollars per share)				$ 52.37	$ 5.17	$ 2.90
Stock based compensation not recognized		26,000		$ 26,000
Stock based compensation not recognized, period for recognition (years)				2 years 8 months 12 days
Expected dividend yield (percent)				0.00%	0.00%	0.00%
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation not recognized, period for recognition (years)				3 years 6 months
Stock based compensation not recognized, restricted stock		36,500		$ 36,500
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation not recognized		$ 800		$ 800
Stock based compensation not recognized, period for recognition (years)				4 months 24 days
Expected dividend yield (percent)				0.00%	0.00%
Employee stock purchase plan, maximum employee subscription rate		10.00%		10.00%
Employee stock purchase plan, purchase price of common stock (percent of stock value)				85.00%
Common stock issued under employee stock purchase plan (in shares)				232,333	0
2018 Employee Stock Purchase Plan \| Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized		922,250		922,250
Share-based compensation expense				$ 2,300	$ 300