Stock-Based Compensation - Summary of Grants Awarded (Details)	6 Months Ended
Jun. 30, 2018 $ / shares shares
March 5, 2018 \| Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares) \| shares	31,887
Grant date fair value of restricted stock (in dollars per share) \| $ / shares	$ 7.84
March 5, 2018 \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares) \| shares	0
Grant date fair value of stock options (in dollars per share) \| $ / shares	$ 0.00
March 5, 2018 \| Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted (in shares) \| shares	0
Grant date fair value of performance shares (in dollars per share) \| $ / shares	$ 0.00
May 9, 2018 [Member] \| Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares) \| shares	868,134
Grant date fair value of restricted stock (in dollars per share) \| $ / shares	$ 7.90
May 9, 2018 [Member] \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares) \| shares	14,310
Grant date fair value of stock options (in dollars per share) \| $ / shares	$ 4.09
May 9, 2018 [Member] \| Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted (in shares) \| shares	408,179
Grant date fair value of performance shares (in dollars per share) \| $ / shares	$ 7.39

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://www.xbrl.org/2003/role/presentationRef
-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=96867065&loc=d3e5070-113901

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- Definition

Per share weighted average intrinsic value of equity-based compensation awards granted. Excludes stock and unit options.

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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

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

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

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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