Common Stock, Capital Shares Reserved for Future Issuance, Amount of Annual Increase

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Outstanding, Number

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Share Based Compensation Plans

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
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-Topic 210
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- Definition

Amount of cost capitalized for award under share-based payment arrangement.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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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.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

+ References

No definition available.

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STOCKHOLDERS' EQUITY - Stock Plans and Share Based Compensation Narrative (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 17, 2015 shares	Sep. 30, 2021 USD ($) shares	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) plan shares	Sep. 30, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share based compensation plans \| plan				2
Employee stock purchase plan, compensation expense \| $		$ 165,011	$ 110,389	$ 429,999	$ 283,872
Capitalized share-based compensation expense \| $		3,600	3,800	11,000	9,500
Unrecognized compensation cost \| $		1,700,000		$ 1,700,000
Unrecognized compensation cost, period for recognition				2 years 11 months 8 days
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase plan, compensation expense \| $		$ 7,600	$ 3,300	$ 24,400	$ 12,100
2009 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance (in shares)	0
2009 Stock Option Plan \| Stock options, RSAs, and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments outstanding (in shares)		6,797,068		6,797,068
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future issuance (in shares)		118,883,836		118,883,836
Shares reserved for future issuance (in shares)	30,000,000
Shares reserved for future issuance, percentage of annual increase	5.00%
2015 Equity Incentive Plan \| Stock options, RSAs, and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments outstanding (in shares)		16,570,814		16,570,814
2015 Equity Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance, amount of annual increase (in shares)	40,000,000