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Common Stock - Additional Information (Details) - USD ($) $ in Thousands |  |  | 1 Months Ended | 3 Months Ended
--- | --- | --- | --- | ---
Jan. 01, 2020 | Mar. 31, 2019 | Mar. 31, 2019 | Mar. 31, 2019 | Mar. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Withholding tax adjustment |  |  |  | $ 784,724 |
2019 Employee Stock Purchase Plan |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Percentage of earnings for purchase of common stock |  | 15.00% | 15.00% | 15.00% |
Offering periods |  | 12 months |  |  |
Employee stock purchase plan, description |  | The initial offering period will run from March 28, 2019 through June 30, 2020. |  |  |
Common stock reserved for issuance |  | 6,000,000 | 6,000,000 | 6,000,000 |
Common stock purchased |  |  |  |  |
2019 Employee Stock Purchase Plan | Scenario, Forecast |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock reserved for issuance | 7,000,000 |  |  |  |
Percentage of common stock outstanding | 1.00% |  |  |  |
Restricted Stock Units |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Withholding tax adjustment, shares |  |  | 7,798,045 |  |
Withholding tax adjustment |  |  | $ 561,200 |  |
Aggregate grant-date fair value, weighted average period |  |  | 2 years |  |
Issuance of common stock upon settlement of RSUs, shares |  |  | 17,688,423 |  |
Aggregate unrecognized compensation cost |  | $ 1,300,000 | $ 1,300,000 | $ 1,300,000 |
Restricted Stock Units | Certain Officers,Employees and Consultants |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Number of shares granted |  |  | 15,065,349 |  |
Aggregate grant-date fair value, net of forfeitures |  |  | $ 834,300 |  |
Aggregate grant-date fair value, weighted average period |  |  | 2 years |  |
Common Stock |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Issuance of common stock upon exercise of stock options, shares |  |  | 3,162,797 | 7,121,000 | 335,000
Stock issued value during the period |  |  | $ 205,600 |  |
Withholding tax adjustment, shares |  |  | 3,617,460 | 11,415,000 |
Withholding tax adjustment |  |  | $ 235,100 |  |
Issuance of common stock upon settlement of RSUs, shares |  |  |  | 17,688,000 |

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- Definition Share based compensation arrangement by share based payment award equity instruments other than options net of forfeitures aggregate grant date fair value. + References No definition available. + Details
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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=107668666&loc=SL79513924-113897 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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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. + Details
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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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