Stock-Based Compensation - Summary of Grant Contract and Vesting Periods (Details) - Equity Option	12 Months Ended
Dec. 31, 2019
Director \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contract Period	7 years
Director \| Director \| 6 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	100.00%
Employee 7 Year Grants \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contract Period	7 years
Employee 7 Year Grants \| Employee \| 6 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	0.00%
Employee 7 Year Grants \| Employee \| Yr 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	0.00%
Employee 7 Year Grants \| Employee \| Yr 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	50.00%
Employee 7 Year Grants \| Employee \| Yr 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	50.00%
Employee 10 Year Grants \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contract Period	10 years
Employee 10 Year Grants \| Employee \| 6 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	0.00%
Employee 10 Year Grants \| Employee \| Yr 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	0.00%
Employee 10 Year Grants \| Employee \| Yr 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	25.00%
Employee 10 Year Grants \| Employee \| Yr 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	25.00%
Employee 10 Year Grants \| Employee \| Yr 4
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	25.00%
Employee 10 Year Grants \| Employee \| Yr 5
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	25.00%

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.

No definition available.

+ Details

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- Definition

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

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Period from grant date that an equity-based award expires, 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 (a)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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