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Share-Based Compensation - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Long-term equity incentive plan, termination date | May 01, 2023
Number of shares authorized under plan | 10,600,000
Number of shares available for future issuance under share-based plan | 700,000
Restricted Stock | Officers and Employees |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 4 years
Performance Units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period of ROIC as performance measure | 4 years
Vesting period of TSR as performance measure | 3 years
Percentage of ROIC as performance measure | 50.00%
Percentage of TSR as performance measure | 50.00%

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- Definition Share based compensation arrangement by share based payment award award vesting period performance measurement based on return on invested capital. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award award vesting period performance measurement based on total shareholder return. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award percentage of performance measurement based on return on invested capital. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award percentage of performance measurement based on total shareholder return. + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Date the equity-based award expires, in CCYY-MM-DD format. + 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=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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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)(3) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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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 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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