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Fair Value Measurements (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Derivative financial instruments | $ 278 | $ 0
Liabilities: |  |
Derivative financial instruments | 0 | 487
Fair Value, Measurements, Recurring |  |
Assets: |  |
Derivative financial instruments | 278 |
Investments: |  |
Cash surrender value of life insurance policies - deferred compensation plan | 30,706 | 30,351
Liabilities: |  |
Derivative financial instruments |  | 487
Fair Value, Measurements, Recurring | Deferred compensation plan |  |
Liabilities: |  |
Deferred compensation plan | 26,158 | 26,797
Fair Value, Measurements, Recurring | Marketable securities - other |  |
Investments: |  |
Marketable securities - other | 54 | 113
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets (Level 1) |  |
Assets: |  |
Derivative financial instruments | 0 |
Investments: |  |
Cash surrender value of life insurance policies - deferred compensation plan | 0 | 0
Liabilities: |  |
Derivative financial instruments |  | 0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets (Level 1) | Deferred compensation plan |  |
Liabilities: |  |
Deferred compensation plan | 0 | 0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets (Level 1) | Marketable securities - other |  |
Investments: |  |
Marketable securities - other | 54 | 113
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Derivative financial instruments | 278 |
Investments: |  |
Cash surrender value of life insurance policies - deferred compensation plan | 30,706 | 30,351
Liabilities: |  |
Derivative financial instruments |  | 487
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Deferred compensation plan |  |
Liabilities: |  |
Deferred compensation plan | 26,158 | 26,797
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Marketable securities - other |  |
Investments: |  |
Marketable securities - other | 0 | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Derivative financial instruments | 0 |
Investments: |  |
Cash surrender value of life insurance policies - deferred compensation plan | 0 | 0
Liabilities: |  |
Derivative financial instruments |  | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Deferred compensation plan |  |
Liabilities: |  |
Deferred compensation plan | 0 | 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Marketable securities - other |  |
Investments: |  |
Marketable securities - other | $ 0 | $ 0

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
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- Definition Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI). + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 + Details
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