Stock-Based Compensation Plans - Additional Information (Details) - 2018 Stock Incentive Plan	3 Months Ended
Mar. 31, 2020 $ / shares shares
Performance-Based Restricted Stock Units \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted \| shares	545,588
Time Based Restricted Stock Units \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted \| shares	1,056,354
Performance-Based and Service Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value \| $ / shares	$ 10.80
Stock Options \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted \| shares	650,367
Weighted average exercise price per share \| $ / shares	$ 10.27
Weighted average grant date fair value per share \| $ / shares	$ 2.84

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).

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=116856206&loc=d3e5070-113901

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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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

Gross number of share options (or share units) granted during the period.

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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