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Share-Based Compensation - Deferred Compensation Plan (Details) - SERP | 12 Months Ended
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Dec. 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of earned income on a pre-tax basis, deferred | 25.00%
Percentage of match participants' deferrals | 25.00%
Percentage of deferral in the form of common stock | 15.00%
Full vest in matching contribution | 3 years
Stock options authorized to issue (in shares) | 1,013,000
Common stock reserved for future issuance (in shares) | 400,000
Shares exercised and delivered (in shares) | 9,000
Stock options vested and outstanding (in shares) | 300,000

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- Definition Deferred Compensation Arrangement Employer Contribution Percentage of Participant Deferral + References No definition available. + Details
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- Definition Deferred Compensation Arrangement with Individual, Remaining Shares Authorized for Issuance + References No definition available. + Details
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- Definition Deferred Compensation Arrangement with Individual, Shares Issued for Current Year Funding + References No definition available. + Details
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- Definition Shard-based Compensation Arrangement by Share-based Payment Award, Full Vest in Matching Contribution + References No definition available. + Details
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- Definition The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date. + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=96867065&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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- Details
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