Stock Based Compensation - Narrative (Details) shares in Millions	3 Months Ended
Mar. 31, 2020 shares
Additional Disclosures for equity-based plans
Shares available for grant (in shares)	2
Time-based RSUs and RSAs
Additional Disclosures for equity-based plans
Vesting period	4 years
Time-based RSUs and RSAs \| Minimum
Additional Disclosures for equity-based plans
Percent of share value	0.00%
Time-based RSUs and RSAs \| Maximum
Additional Disclosures for equity-based plans
Percent of share value	200.00%
Performance-based RSUs and RSAs
Additional Disclosures for equity-based plans
Performance period for 2020 and 2018 awards	1 year
Share-based Payment Arrangement, Tranche One \| Performance-based RSUs and RSAs
Additional Disclosures for equity-based plans
Vesting period	1 year
Amount of shares that are expected to vest (as a percent )	50.00%

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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 (a)(1)
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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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.

+ References

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

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

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